subject:(Transition metal complexes)

Columbia University

1. Rong, Yi. Main Group and Transition Metal Complexes Supported by Multidentate Tripodal Ligands that Feature Nitrogen, Oxygen and Sulfur Donors: Synthesis, Structural Characterization and Appliations.

Degree: 2013, Columbia University

URL: https://doi.org/10.7916/D87D2S4D

► Chapter 1 focuses on the computational study of Zr(CH2Ph)4 and chapter 2 discusses synthesis, characterization and density functional study of 2-imidazolethione. Chapters 3 - 6… (more)

▼ Chapter 1 focuses on the computational study of Zr(CH2Ph)4 and chapter 2 discusses synthesis, characterization and density functional study of 2-imidazolethione. Chapters 3 - 6 describe the synthesis, structural characterization several multidentate tripodal ligands, namely tris(mercaptoimidazolyl)-hydroborato ligand, [TmR], tris(2-pyridylseleno)methyl ligand, [Tpsem], bis(2-pyridonyl)(pyridine-2-yloxy)methyl ligand, [O-poBpom] and allyl-tris(3-t-butylpyrazolyl)borato ligand, [allylTpBut], and their application to main group and transition metals. Chapter 1 describes the analysis of a monoclinic modification of Zr(CH2Ph)4 by single crystal X-ray diffraction, which reveals that the Zr-CH2-Ph bond angles in this compound span a range of 25.1°; that is much larger than previously observed for the orthorhombic form (12.1°;). In accord with this large range, density functional theory calculations demonstrate that little energy is required to perturb the Zr-CH2-Ph bond angles in this compound. Furthermore, density functional theory calculations on Me3ZrCH2Ph indicate that bending of the Zr-CH2-Ph moiety in the monobenzyl compound is also facile, thereby demonstrating that a benzyl ligand attached to zirconium is intrinsically flexible, such that its bending does not require a buffering effect involving another benzyl ligand. Chapter 2 describes the structure of 1-t-butyl-1,3-dihydro-2H-benzimidazole-2-thione which has been determined by X-ray diffraction. The compound exists in the chalcogenone form instead of chalcogenol form, which is similar to its oxo and selone counterparts. Comparison of 2-imidazolone, 2-imidazolethione and 2-imidazoleselone compounds shows that two N-C-E bond angles in the chalcogenone forms are not symmetric. This trend can be reproduced by density functional theory calculations. Additionally, H(mbenzimBut) has intermolecular hydrogen bonding interactions, whereas its selenium counterpart does not. The C-E bond lengths of 2-imidazolone, 2-imidazolethione and 2-imidazoleselone compounds are intermediate between those of formal C-E single and double bonds, which is in accord with the notion that zwitterionic structures that feature single C+-E- dative covalent bonds provide an important contribution in such molecules. Furthermore, NBO analysis of the bonding in H(ximBut) derivatives demonstrates that the doubly bonded C=E resonance structure is most significant for the oxygen derivative, whereas singly bonded C+-E- resonance structures dominate for the tellurium derivative. This result appears to be counterintuitive, based on the fact that it opposes the trend that one would expect on the basis of electronegativity difference, however, studies on XC(E)NH2 derivatives provide solid support for it. In this regard, the C~E bonding in these compounds is significantly different to that in chalcogenoformaldehyde derivatives for which the bonding is well represented by a H2C=E double bonded resonance structure. Chapter 3 describes the computational study on [TmMeBenz] anion and the synthesis and…

Subjects/Keywords: Ligands; Transition metal complexes; Metal complexes; Chemistry

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APA (6^th Edition):

Rong, Y. (2013). Main Group and Transition Metal Complexes Supported by Multidentate Tripodal Ligands that Feature Nitrogen, Oxygen and Sulfur Donors: Synthesis, Structural Characterization and Appliations. (Doctoral Dissertation). Columbia University. Retrieved from https://doi.org/10.7916/D87D2S4D

Chicago Manual of Style (16^th Edition):

Rong, Yi. “Main Group and Transition Metal Complexes Supported by Multidentate Tripodal Ligands that Feature Nitrogen, Oxygen and Sulfur Donors: Synthesis, Structural Characterization and Appliations.” 2013. Doctoral Dissertation, Columbia University. Accessed January 20, 2021. https://doi.org/10.7916/D87D2S4D.

MLA Handbook (7^th Edition):

Rong, Yi. “Main Group and Transition Metal Complexes Supported by Multidentate Tripodal Ligands that Feature Nitrogen, Oxygen and Sulfur Donors: Synthesis, Structural Characterization and Appliations.” 2013. Web. 20 Jan 2021.

Vancouver:

Rong Y. Main Group and Transition Metal Complexes Supported by Multidentate Tripodal Ligands that Feature Nitrogen, Oxygen and Sulfur Donors: Synthesis, Structural Characterization and Appliations. [Internet] [Doctoral dissertation]. Columbia University; 2013. [cited 2021 Jan 20]. Available from: https://doi.org/10.7916/D87D2S4D.

Council of Science Editors:

Rong Y. Main Group and Transition Metal Complexes Supported by Multidentate Tripodal Ligands that Feature Nitrogen, Oxygen and Sulfur Donors: Synthesis, Structural Characterization and Appliations. [Doctoral Dissertation]. Columbia University; 2013. Available from: https://doi.org/10.7916/D87D2S4D

Queens University

2. Wang, Nan. Luminescent Transition Metal Complexes Based on N-Heterocyclic and N^C-Chelate 4-Coordinate Organoboryl Ligands .

Degree: Chemistry, 2013, Queens University

URL: http://hdl.handle.net/1974/7737

► The objective of this thesis is to examine the photophysical and structural properties of Ru(II)/Re(I) based bimetallic complexes based on p-[N-2-(2’-pyridyl)benzimidazolyl]-[N-2-(2’-pyridyl)indolyl]-benzene (L1) ligand, as well… (more)

▼ The objective of this thesis is to examine the photophysical and structural properties of Ru(II)/Re(I) based bimetallic complexes based on p-[N-2-(2’-pyridyl)benzimidazolyl]-[N-2-(2’-pyridyl)indolyl]-benzene (L1) ligand, as well as the photophysical and photochemical properties of N^C-chelate 4-coordinate organoboron compounds that contain a metal acetylide group. Ligand L1 was synthesized and fully characterized. Due to the incorporation of two distinct chelating sites, an N^N-chelate site and an N^C-chelate site, L1 has been found to be very effective in selective binding to two different metal ions. Two new heterobimetallic complexes Ru(II)-Pt(II) and Ru(II)-Pd(II) using L1 as the bridging ligand were prepared and fully characterized. All Ru(II)-containing complexes have been found to be luminescent. The Pt(II) unit appears to enhance phosphorescent efficiency of the Ru(II) unit while the Pd(II) unit has little influence. Using L1 as the bridging unit, two new Re(I) based heterobimetallic complexes Re(I)-Pt(II) and Re(I)-Pd(II) were also successfully synthesized. Results indicate that there is communication between the two different metal centers. The preliminary results indicated that the mononuclear Re(I) complex based on L1 is a promising candidate for the electrocatalytic CO2 reduction. Pd(II) and Pt(II) complexes were synthesized with an atropisomeric bis-pyridyl chelate ligand bis{3,3’-[N-Ph-2-(2’-py) indolyl]} (L4). To examine the potential use of the trans-chelate L4 ligand in oxidative coupling reactions catalyzed by Pd(II) compounds, acetoxylation of arenes by PhI(OAc)2 using PhI(OAc)2/L4 (2:1) as the catalyst was examined and found to accelerate the reaction, but lower the overall yield. Finally, to examine the impact of metal ions on photochromic properties of N^C-chelate organoboron compounds, three metal acetylide compounds that contain a photo-active N^C-chelate BMes2 unit (B(ppy)Mes2) were prepared and fully characterized. The studies indicated that by taking advantage of different heavy metals the photoisomerization quantum efficiency of the boron chromophores can be readily tuned through the adjustment of 3LC state localized on the chelate backbone or the involvement of MLCT state in the lowest energy electronic transition.

Subjects/Keywords: luminescent transition metal complexes

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APA (6^th Edition):

Wang, N. (2013). Luminescent Transition Metal Complexes Based on N-Heterocyclic and N^C-Chelate 4-Coordinate Organoboryl Ligands . (Thesis). Queens University. Retrieved from http://hdl.handle.net/1974/7737

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Wang, Nan. “Luminescent Transition Metal Complexes Based on N-Heterocyclic and N^C-Chelate 4-Coordinate Organoboryl Ligands .” 2013. Thesis, Queens University. Accessed January 20, 2021. http://hdl.handle.net/1974/7737.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Wang, Nan. “Luminescent Transition Metal Complexes Based on N-Heterocyclic and N^C-Chelate 4-Coordinate Organoboryl Ligands .” 2013. Web. 20 Jan 2021.

Vancouver:

Wang N. Luminescent Transition Metal Complexes Based on N-Heterocyclic and N^C-Chelate 4-Coordinate Organoboryl Ligands . [Internet] [Thesis]. Queens University; 2013. [cited 2021 Jan 20]. Available from: http://hdl.handle.net/1974/7737.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Wang N. Luminescent Transition Metal Complexes Based on N-Heterocyclic and N^C-Chelate 4-Coordinate Organoboryl Ligands . [Thesis]. Queens University; 2013. Available from: http://hdl.handle.net/1974/7737

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Johannesburg

3. Mamba, Saul Mcelwa. Synthesis, characterization and applications of dithiocarbamate transition metal complexes.

Degree: 2011, University of Johannesburg

URL: http://hdl.handle.net/10210/3629

►

M.Sc.

The increasing number of individuals living with the HIV virus and the extensive use of antimicrobial medicines has resulted in an increase in opportunistic… (more)

Subjects/Keywords: Transition metal complexes; Transition metal complexes synthesis; Dithiocarbamates

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APA (6^th Edition):

Mamba, S. M. (2011). Synthesis, characterization and applications of dithiocarbamate transition metal complexes. (Thesis). University of Johannesburg. Retrieved from http://hdl.handle.net/10210/3629

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Mamba, Saul Mcelwa. “Synthesis, characterization and applications of dithiocarbamate transition metal complexes.” 2011. Thesis, University of Johannesburg. Accessed January 20, 2021. http://hdl.handle.net/10210/3629.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Mamba, Saul Mcelwa. “Synthesis, characterization and applications of dithiocarbamate transition metal complexes.” 2011. Web. 20 Jan 2021.

Vancouver:

Mamba SM. Synthesis, characterization and applications of dithiocarbamate transition metal complexes. [Internet] [Thesis]. University of Johannesburg; 2011. [cited 2021 Jan 20]. Available from: http://hdl.handle.net/10210/3629.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Mamba SM. Synthesis, characterization and applications of dithiocarbamate transition metal complexes. [Thesis]. University of Johannesburg; 2011. Available from: http://hdl.handle.net/10210/3629

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Michigan State University

4. Aldrich, Kelly E. An exploration of mid- to high-valent transition metal complexes for application to catalysis.

Degree: 2019, Michigan State University

URL: http://etd.lib.msu.edu/islandora/object/etd:47748

►

Thesis Ph. D. Michigan State University. Chemistry 2019

"The valency or oxidation state of a transition metal in a complex plays a large role in… (more)

Subjects/Keywords: Transition metal complexes; Metal ions; Catalysis; Chemistry

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APA (6^th Edition):

Aldrich, K. E. (2019). An exploration of mid- to high-valent transition metal complexes for application to catalysis. (Thesis). Michigan State University. Retrieved from http://etd.lib.msu.edu/islandora/object/etd:47748

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Aldrich, Kelly E. “An exploration of mid- to high-valent transition metal complexes for application to catalysis.” 2019. Thesis, Michigan State University. Accessed January 20, 2021. http://etd.lib.msu.edu/islandora/object/etd:47748.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Aldrich, Kelly E. “An exploration of mid- to high-valent transition metal complexes for application to catalysis.” 2019. Web. 20 Jan 2021.

Vancouver:

Aldrich KE. An exploration of mid- to high-valent transition metal complexes for application to catalysis. [Internet] [Thesis]. Michigan State University; 2019. [cited 2021 Jan 20]. Available from: http://etd.lib.msu.edu/islandora/object/etd:47748.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Aldrich KE. An exploration of mid- to high-valent transition metal complexes for application to catalysis. [Thesis]. Michigan State University; 2019. Available from: http://etd.lib.msu.edu/islandora/object/etd:47748

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Namibia

5. Hishimone, PN. Synthesis and characterization of transition and some group 14 metal complexes containing ligands derived from 2-acetylpyridine and hydrazide derivatives, and their antiplasmodium activities .

Degree: 2015, University of Namibia

URL: http://hdl.handle.net/11070/1480

► The synthesis and characterization of two sets of metal complexes containing ligands derived from 2-acetylpyridine and hydrazide derivatives is reported. The first set consists of… (more)

Subjects/Keywords: Metal complexes ; Ligands ; Acetylpyridine ; Hydrazide ; Transition metal complexes ; Group 14 elements

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APA (6^th Edition):

Hishimone, P. (2015). Synthesis and characterization of transition and some group 14 metal complexes containing ligands derived from 2-acetylpyridine and hydrazide derivatives, and their antiplasmodium activities . (Thesis). University of Namibia. Retrieved from http://hdl.handle.net/11070/1480

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Hishimone, PN. “Synthesis and characterization of transition and some group 14 metal complexes containing ligands derived from 2-acetylpyridine and hydrazide derivatives, and their antiplasmodium activities .” 2015. Thesis, University of Namibia. Accessed January 20, 2021. http://hdl.handle.net/11070/1480.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Hishimone, PN. “Synthesis and characterization of transition and some group 14 metal complexes containing ligands derived from 2-acetylpyridine and hydrazide derivatives, and their antiplasmodium activities .” 2015. Web. 20 Jan 2021.

Vancouver:

Hishimone P. Synthesis and characterization of transition and some group 14 metal complexes containing ligands derived from 2-acetylpyridine and hydrazide derivatives, and their antiplasmodium activities . [Internet] [Thesis]. University of Namibia; 2015. [cited 2021 Jan 20]. Available from: http://hdl.handle.net/11070/1480.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Hishimone P. Synthesis and characterization of transition and some group 14 metal complexes containing ligands derived from 2-acetylpyridine and hydrazide derivatives, and their antiplasmodium activities . [Thesis]. University of Namibia; 2015. Available from: http://hdl.handle.net/11070/1480

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Johannesburg

6. Du Plessis, Ernestus Jan Louis. Reaksies van oorgangselementkarbeenkomplekse met stikstofnukleofiele.

Degree: 2015, University of Johannesburg

URL: http://hdl.handle.net/10210/14911

M.Sc. (Chemistry)

Please refer to full text to view abstract

Subjects/Keywords: Transition metal complexes

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APA (6^th Edition):

Du Plessis, E. J. L. (2015). Reaksies van oorgangselementkarbeenkomplekse met stikstofnukleofiele. (Thesis). University of Johannesburg. Retrieved from http://hdl.handle.net/10210/14911

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Du Plessis, Ernestus Jan Louis. “Reaksies van oorgangselementkarbeenkomplekse met stikstofnukleofiele.” 2015. Thesis, University of Johannesburg. Accessed January 20, 2021. http://hdl.handle.net/10210/14911.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Du Plessis, Ernestus Jan Louis. “Reaksies van oorgangselementkarbeenkomplekse met stikstofnukleofiele.” 2015. Web. 20 Jan 2021.

Vancouver:

Du Plessis EJL. Reaksies van oorgangselementkarbeenkomplekse met stikstofnukleofiele. [Internet] [Thesis]. University of Johannesburg; 2015. [cited 2021 Jan 20]. Available from: http://hdl.handle.net/10210/14911.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Du Plessis EJL. Reaksies van oorgangselementkarbeenkomplekse met stikstofnukleofiele. [Thesis]. University of Johannesburg; 2015. Available from: http://hdl.handle.net/10210/14911

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Adelaide

7. Ferguson, James, Ph.D. The properties of transition metal complexes with pyrromethenes / by James Ferguson.

Degree: 1965, University of Adelaide

URL: http://hdl.handle.net/2440/22254

Subjects/Keywords: Transition metal complexes.

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APA (6^th Edition):

Ferguson, James, P. D. (1965). The properties of transition metal complexes with pyrromethenes / by James Ferguson. (Thesis). University of Adelaide. Retrieved from http://hdl.handle.net/2440/22254

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Ferguson, James, Ph D. “The properties of transition metal complexes with pyrromethenes / by James Ferguson.” 1965. Thesis, University of Adelaide. Accessed January 20, 2021. http://hdl.handle.net/2440/22254.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Ferguson, James, Ph D. “The properties of transition metal complexes with pyrromethenes / by James Ferguson.” 1965. Web. 20 Jan 2021.

Vancouver:

Ferguson, James PD. The properties of transition metal complexes with pyrromethenes / by James Ferguson. [Internet] [Thesis]. University of Adelaide; 1965. [cited 2021 Jan 20]. Available from: http://hdl.handle.net/2440/22254.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Ferguson, James PD. The properties of transition metal complexes with pyrromethenes / by James Ferguson. [Thesis]. University of Adelaide; 1965. Available from: http://hdl.handle.net/2440/22254

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Hong Kong University of Science and Technology

8. So, Shiu Chun. Transition metal complexes with aryl and porphyrin ligands.

Degree: 2016, Hong Kong University of Science and Technology

URL: http://repository.ust.hk/ir/Record/1783.1-87134 ; https://doi.org/10.14711/thesis-b1626191 ; http://repository.ust.hk/ir/bitstream/1783.1-87134/1/th_redirect.html

► This thesis consists of two parts. The first part is about transition metal complexes bearing σ−aryl and σ−hydroxyaryl ligands while the second part concerned with… (more)

Subjects/Keywords: Transition metal complexes ; Porphyrins ; Nitroaromatic compounds ; Ligands

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APA (6^th Edition):

So, S. C. (2016). Transition metal complexes with aryl and porphyrin ligands. (Thesis). Hong Kong University of Science and Technology. Retrieved from http://repository.ust.hk/ir/Record/1783.1-87134 ; https://doi.org/10.14711/thesis-b1626191 ; http://repository.ust.hk/ir/bitstream/1783.1-87134/1/th_redirect.html

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

So, Shiu Chun. “Transition metal complexes with aryl and porphyrin ligands.” 2016. Thesis, Hong Kong University of Science and Technology. Accessed January 20, 2021. http://repository.ust.hk/ir/Record/1783.1-87134 ; https://doi.org/10.14711/thesis-b1626191 ; http://repository.ust.hk/ir/bitstream/1783.1-87134/1/th_redirect.html.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

So, Shiu Chun. “Transition metal complexes with aryl and porphyrin ligands.” 2016. Web. 20 Jan 2021.

Vancouver:

So SC. Transition metal complexes with aryl and porphyrin ligands. [Internet] [Thesis]. Hong Kong University of Science and Technology; 2016. [cited 2021 Jan 20]. Available from: http://repository.ust.hk/ir/Record/1783.1-87134 ; https://doi.org/10.14711/thesis-b1626191 ; http://repository.ust.hk/ir/bitstream/1783.1-87134/1/th_redirect.html.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

So SC. Transition metal complexes with aryl and porphyrin ligands. [Thesis]. Hong Kong University of Science and Technology; 2016. Available from: http://repository.ust.hk/ir/Record/1783.1-87134 ; https://doi.org/10.14711/thesis-b1626191 ; http://repository.ust.hk/ir/bitstream/1783.1-87134/1/th_redirect.html

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Hong Kong

9. 梁志明. Design, synthesis and characterization of metal complexes of d⁶ and d¹⁰ electronic configuration and their inorganic-organic hybrids : from covalent conjugation to supramolecular assembly and luninescence chemosensing.

Degree: 2015, University of Hong Kong

URL: http://hdl.handle.net/10722/223027

Subjects/Keywords: Transition metal complexes

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APA (6^th Edition):

梁志明. (2015). Design, synthesis and characterization of metal complexes of d⁶ and d¹⁰ electronic configuration and their inorganic-organic hybrids : from covalent conjugation to supramolecular assembly and luninescence chemosensing. (Thesis). University of Hong Kong. Retrieved from http://hdl.handle.net/10722/223027

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

梁志明. “Design, synthesis and characterization of metal complexes of d⁶ and d¹⁰ electronic configuration and their inorganic-organic hybrids : from covalent conjugation to supramolecular assembly and luninescence chemosensing.” 2015. Thesis, University of Hong Kong. Accessed January 20, 2021. http://hdl.handle.net/10722/223027.

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

梁志明. “Design, synthesis and characterization of metal complexes of d⁶ and d¹⁰ electronic configuration and their inorganic-organic hybrids : from covalent conjugation to supramolecular assembly and luninescence chemosensing.” 2015. Web. 20 Jan 2021.

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

Vancouver:

梁志明. Design, synthesis and characterization of metal complexes of d⁶ and d¹⁰ electronic configuration and their inorganic-organic hybrids : from covalent conjugation to supramolecular assembly and luninescence chemosensing. [Internet] [Thesis]. University of Hong Kong; 2015. [cited 2021 Jan 20]. Available from: http://hdl.handle.net/10722/223027.

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

梁志明. Design, synthesis and characterization of metal complexes of d⁶ and d¹⁰ electronic configuration and their inorganic-organic hybrids : from covalent conjugation to supramolecular assembly and luninescence chemosensing. [Thesis]. University of Hong Kong; 2015. Available from: http://hdl.handle.net/10722/223027

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete
Not specified: Masters Thesis or Doctoral Dissertation

University of Hong Kong

10. 陳偉文. Transition metal complexes with pyrazole and bulky salen ligands, catalysis, spectroscopic properties and bioactivity.

Degree: 2016, University of Hong Kong

URL: http://hdl.handle.net/10722/244315

► 2,6-Bis[(4S, 7R)-7, 8, 8-trimethyl-4, 5, 6, 7-tetrahydro-4, 7-methano-1-indazoly]pyridine (PPz*) is a pincer ligand rarely used by chemists in the synthesis of transition metal complexes since… (more)

▼ 2,6-Bis[(4S, 7R)-7, 8, 8-trimethyl-4, 5, 6, 7-tetrahydro-4, 7-methano-1-indazoly]pyridine (PPz*) is a pincer ligand rarely used by chemists in the synthesis of transition metal complexes since its preparation is difficult. In this work, a new synthetic route to the compound was developed with safer and milder conditions. Iridium(III), palladium(II), platinum(II), cobalt(II) and silver(I) complexes supported with the PPz* ligand have been synthesized. Their luminescent and catalytic properties have been investigated. The iridium(III) carbene PPz* complex has been synthesized and studied by ESI-MS. The silver PPz* complex was found to catalyze cyclopropanation of styrenes and ethyl phenyldiazoacetate in good yields. A new methylated palladium(II) complex has been synthesized. (+)-(Z)-3-(hydroxymethylene)-1,7,7-trimethylbicyclo[2.2.1]heptan-2-one (HPz*), one of the starting materials for the synthesis of PPz*, bears a pyrazole ring, which can be also used as a ligand. The coinage metals, copper, silver and gold have been chosen to complex with HPz*. Their catalytic activities and anti-cancer properties have been investigated. The silver(I) HPz* complex was found to be an effective catalyst for intermolecular alkene cyclopropanation and sp3 C-H insertion to give corresponding products in good yields. Furthermore, it gives a better performance than cis-platin in killing cancer in cell line A2780, human ovarian carcinoma with IC50 7.21±0.29 μM. Salen is one of the most common ligands used in transition metal catalysis. A novel bulky iron salen complex [FeIII(salen)Cl] (salen = N,N’-bis(2-CPh3-4-tBu-salicylidene)-1,2-cyclohexenediamine dianion) was synthesized by the reaction of the corresponding H2salen ligand and FeCl3. The complex structure was characterized by FAB-MS. Its catalytic activities toward carbene and nitrene transfer reactions were examined but it was found ineffective for these reactions. The Lewis acid catalysis with this complex is now being studied. Advisors/Committee Members: Che, CM (advisor).

Subjects/Keywords: Transition metal complexes

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APA (6^th Edition):

陳偉文. (2016). Transition metal complexes with pyrazole and bulky salen ligands, catalysis, spectroscopic properties and bioactivity. (Thesis). University of Hong Kong. Retrieved from http://hdl.handle.net/10722/244315

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

陳偉文. “Transition metal complexes with pyrazole and bulky salen ligands, catalysis, spectroscopic properties and bioactivity.” 2016. Thesis, University of Hong Kong. Accessed January 20, 2021. http://hdl.handle.net/10722/244315.

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

陳偉文. “Transition metal complexes with pyrazole and bulky salen ligands, catalysis, spectroscopic properties and bioactivity.” 2016. Web. 20 Jan 2021.

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

Vancouver:

陳偉文. Transition metal complexes with pyrazole and bulky salen ligands, catalysis, spectroscopic properties and bioactivity. [Internet] [Thesis]. University of Hong Kong; 2016. [cited 2021 Jan 20]. Available from: http://hdl.handle.net/10722/244315.

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

陳偉文. Transition metal complexes with pyrazole and bulky salen ligands, catalysis, spectroscopic properties and bioactivity. [Thesis]. University of Hong Kong; 2016. Available from: http://hdl.handle.net/10722/244315

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete
Not specified: Masters Thesis or Doctoral Dissertation

11. Johnston, Hannah May,author. Synthesis, characterization, and applications of pyridine- and pyridol-based azamacrocyclic transition metal complexes.

Degree: 2018, Texas Christian University

URL: https://repository.tcu.edu/handle/116099117/21846

► The Green group has designed and synthesized a series of pyridine- and pyridol-based azamacrocycles, L1-L9. Azamacrocycles are a unique class of ligands that form exceptionally… (more)

▼ The Green group has designed and synthesized a series of pyridine- and pyridol-based azamacrocycles, L1-L9. Azamacrocycles are a unique class of ligands that form exceptionally stable complexes with transition metals, due to the macrocyclic effect.(ref. 1-2) The corresponding metal complexes have exceptional structural, kinetic, thermodynamic, spectral, and electrochemical properties that have long been studied by researchers.(ref. 2) Additionally, these macrocyclic metal complexes have a broad range of applications such as use as biomimetic models, catalysts, or therapeutic/diagnostic agents. This work presents the synthesis, characterization, and applications of L1-L5 (gen. 1 and 2) and corresponding transition metal complexes. Ligands L1-L3 were complexed to manganese and cobalt; these complexes were studied using traditional inorganic spectroscopic techniques.^Ligand-cobalt complexes exhibit a unique solvent-dependent equilibrium behavior similar to the classic cobalt(II) chloride equilibrium, which is often used to illustrate Le Châteliers Principle.(ref. 8) The ligand-manganese complexes can be modulated between mononuclear or dinuclear depending on the pH of solution during synthesis. Mononuclear Mn(III) complexes offer the potential to be utilized as oxidation catalysts. Additionally, resulting dinuclear di-µ-oxo bridged complexes offer connectivity to historically significant biomimetic model complexes. Within the literature, Mn(III,IV) di – µ-oxo bridged dimers have traditionally been used to model the active site of the oxygen evolving complex (OEC) with photosystem II (PSII).(ref. 9) L4, was designed to enhance the radical scavenging abilities exhibited by L2, by doubling the number of pyridol-rings present within the ligand.^These pyridol-based macrocycles offer the potential to be used as therapeutics for the treatment of neurodegenerative disorders by combating reactive oxygen species and sequestering misregulated metal ions. After synthesizing L4, it was complexed to several biologically relevant metal ions, Cu(II) and Zn(II). Additionally, radical scavenging assays were performed, as well as cell studies to determine the therapeutic window of L4. Finally, L5 was originally designed to be a rigid 15-membered pentaazamacrocycle for use as a Mn(II)-based contrast agent. Due to the presence of piperazine-rings, a 30-membered decaazamacrocyclic dimer was isolated instead. Although this ligand forms weak complexes with transition metal ions, it will be explored as a potential anion receptor in the future, due to its six protonation events.

Subjects/Keywords: Pyridine.; Macrocyclic compounds.; Transition metal complexes.

11 more images…

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APA (6^th Edition):

Johnston, H. M. (2018). Synthesis, characterization, and applications of pyridine- and pyridol-based azamacrocyclic transition metal complexes. (Thesis). Texas Christian University. Retrieved from https://repository.tcu.edu/handle/116099117/21846

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Johnston, Hannah May,author. “Synthesis, characterization, and applications of pyridine- and pyridol-based azamacrocyclic transition metal complexes.” 2018. Thesis, Texas Christian University. Accessed January 20, 2021. https://repository.tcu.edu/handle/116099117/21846.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Johnston, Hannah May,author. “Synthesis, characterization, and applications of pyridine- and pyridol-based azamacrocyclic transition metal complexes.” 2018. Web. 20 Jan 2021.

Vancouver:

Johnston HM. Synthesis, characterization, and applications of pyridine- and pyridol-based azamacrocyclic transition metal complexes. [Internet] [Thesis]. Texas Christian University; 2018. [cited 2021 Jan 20]. Available from: https://repository.tcu.edu/handle/116099117/21846.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Johnston HM. Synthesis, characterization, and applications of pyridine- and pyridol-based azamacrocyclic transition metal complexes. [Thesis]. Texas Christian University; 2018. Available from: https://repository.tcu.edu/handle/116099117/21846

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Louisville

12. Asem, Samuel S. K. Rational design, synthesis and characterization of amide functionalized pyridine and benzimidazole transition metal complexes.

Degree: PhD, 2011, University of Louisville

URL: 10.18297/etd/52 ; https://ir.library.louisville.edu/etd/52

► This study expands our efforts to make a new class of Pt (II) compounds analogous to cisplatin and its derivatives using sterically hindered ligands. Pt… (more)

▼ This study expands our efforts to make a new class of Pt (II) compounds analogous to cisplatin and its derivatives using sterically hindered ligands. Pt compounds in this series have been synthesized using specially designed pyridine and benzimidazole ligands. These heterocycles, amide functionalized at position 2 with aryl and alkyl pendants, rapidly change their mode of coordination depending on the pH of the medium. These ligands, synthesized using condensation chemistry, also coordinate to Co(II), Ni(H), Cu(lI), and Zn(1I) generally as anionic bis-chelates through the benzimidazole nitrogen and the carbonyl oxygen, creating a four-coordinate complex with the exception of an unusual trigonal bipyramidal Zn(H) complex. I H NMR temperature studies reveal that these ligands interconvert between imide and amide isomers and that electron withdrawing pendants favor amide isomers. Crystal structures of Co(II) and Ni(1I) complexes of N-( I-methylbenzimidazol-2-yl)cyclohexanecarboxamide, for example, show two ligands bind per metal ion when reacted with acetate and nitrate salts. The bischelates of these Ni(1I) complexes also show expansions of their coordination spheres from four to five-coordinate. Furthermore, these Ni(II) bis-chelated complexes possess square planar or distorted 4-coordinate geometries. The synthesis and properties of several new Pt (II) complexes containing these ligands will be presented. A second generation and novel complex class containing metal-binding, linker and recognition domains is reported. Both classes of Pt complexes were obtained using a synthetic methodology which favors the cis isomers. The second generation complex crystallizes in the monoclinic space group P2dn with lattice dimensions a = 17.7393(5) A, b = 11.4632(3) A, c = 19.3959(5) A and ~ = 99.794(3)°. These complexes have been characterized using physical methods that include X-ray crystallography, IH &13C NMR, Mass spectrometry, UV and IR spectroscopies. Complexes similar in structure to cisplatin and carboplatin show varying cytotoxic properties toward different cancer cell lines. Additionally, some of these new Pt complexes show comparable and promising cytotoxicity against prostate cancer cell lines. Advisors/Committee Members: Buchanan, Robert Martin.

Subjects/Keywords: Benzimidazole; Cisplatin; Metal complexes; Pyridine complexes; Pt (II) complexes - antitumor; Transition metal

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APA (6^th Edition):

Asem, S. S. K. (2011). Rational design, synthesis and characterization of amide functionalized pyridine and benzimidazole transition metal complexes. (Doctoral Dissertation). University of Louisville. Retrieved from 10.18297/etd/52 ; https://ir.library.louisville.edu/etd/52

Chicago Manual of Style (16^th Edition):

Asem, Samuel S K. “Rational design, synthesis and characterization of amide functionalized pyridine and benzimidazole transition metal complexes.” 2011. Doctoral Dissertation, University of Louisville. Accessed January 20, 2021. 10.18297/etd/52 ; https://ir.library.louisville.edu/etd/52.

MLA Handbook (7^th Edition):

Asem, Samuel S K. “Rational design, synthesis and characterization of amide functionalized pyridine and benzimidazole transition metal complexes.” 2011. Web. 20 Jan 2021.

Vancouver:

Asem SSK. Rational design, synthesis and characterization of amide functionalized pyridine and benzimidazole transition metal complexes. [Internet] [Doctoral dissertation]. University of Louisville; 2011. [cited 2021 Jan 20]. Available from: 10.18297/etd/52 ; https://ir.library.louisville.edu/etd/52.

Council of Science Editors:

Asem SSK. Rational design, synthesis and characterization of amide functionalized pyridine and benzimidazole transition metal complexes. [Doctoral Dissertation]. University of Louisville; 2011. Available from: 10.18297/etd/52 ; https://ir.library.louisville.edu/etd/52

13. Varsha, G. Studies on Simple and Encapsulated Transition Metal Complexes of Schiff Bases Derived from Diaminonaphthalene.

Degree: 2011, Cochin University of Science and Technology

URL: http://dyuthi.cusat.ac.in/purl/2782

►

Schiff base complexes of transition metal ions have played a significant role in coordination chemistry.In the present study we have synthesized some new Mn(II),Co(II) and… (more)

Subjects/Keywords: Diaminonaphthalene; Schiff bases; Transition Metal complexes; Zeolite-encapsulated transition metal complexes; Chemistry

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APA (6^th Edition):

Varsha, G. (2011). Studies on Simple and Encapsulated Transition Metal Complexes of Schiff Bases Derived from Diaminonaphthalene. (Thesis). Cochin University of Science and Technology. Retrieved from http://dyuthi.cusat.ac.in/purl/2782

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Varsha, G. “Studies on Simple and Encapsulated Transition Metal Complexes of Schiff Bases Derived from Diaminonaphthalene.” 2011. Thesis, Cochin University of Science and Technology. Accessed January 20, 2021. http://dyuthi.cusat.ac.in/purl/2782.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Varsha, G. “Studies on Simple and Encapsulated Transition Metal Complexes of Schiff Bases Derived from Diaminonaphthalene.” 2011. Web. 20 Jan 2021.

Vancouver:

Varsha G. Studies on Simple and Encapsulated Transition Metal Complexes of Schiff Bases Derived from Diaminonaphthalene. [Internet] [Thesis]. Cochin University of Science and Technology; 2011. [cited 2021 Jan 20]. Available from: http://dyuthi.cusat.ac.in/purl/2782.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Varsha G. Studies on Simple and Encapsulated Transition Metal Complexes of Schiff Bases Derived from Diaminonaphthalene. [Thesis]. Cochin University of Science and Technology; 2011. Available from: http://dyuthi.cusat.ac.in/purl/2782

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Hong Kong University of Science and Technology

14. Poon, Ka Chun. Syntheses and density functional theory studies of rhenium and tungsten complexes.

Degree: 2011, Hong Kong University of Science and Technology

URL: http://repository.ust.hk/ir/Record/1783.1-7305 ; https://doi.org/10.14711/thesis-b1154984 ; http://repository.ust.hk/ir/bitstream/1783.1-7305/1/th_redirect.html

► Reactions of ReOCl2(OEt)(PPh3)2 with terminal alkynols produced rhenium oxo ylide complexes with the vinyl double bond located outside the ring system. Reactions of ReOCl2(OEt)(PPh3)2 with… (more)

▼ Reactions of ReOCl2(OEt)(PPh3)2 with terminal alkynols produced rhenium oxo ylide complexes with the vinyl double bond located outside the ring system. Reactions of ReOCl2(OEt)(PPh3)2 with internal alkynols also produced rhenium oxo ylide complexes but with the vinyl double bond located inside the ring system. DFT calculations show that, for reactions involving terminal alkynols, the Cβ attacked products are thermodynamically more stable compared with the Cα attacked products, the reverse is true for reactions involving internal alkynols. Rhenium oxo vinyl complexes from the reactions involving internal alkynes can be oxidized in air to give paramagnetic Re(=CR(CPPh3)CH2CH2O)OCl3 complexes (R = Me and Ph) together with triphenylphosphine oxide. Treatment of rhenacyclobutadiene (CO)4Re(=C(Ph)C(CO2Et)=C(OEt)) with 1-ethoxyehtyne in acetonitrile produced the rhenabenzene (CO)4Re(=C(Ph)C(CO2Et)=C(OEt)CH=C(OEt)). Rhenacyclobutadiene (CO)4Re(=C(1-Naph)C(CO2Et)=C(OEt)) reacted with 1-ethoxyehtyne in acetonitrile to give rhenabenzenes (CO)4Re(=C(1-Naph)C(CO2Et)=C(OEt)CH=C(OEt)) and (CO)4Re(=C(OEt)CH=C(1-Naph)C(CO2Et)=C(OEt)). Treatment of NaRe(CO)5 with (4-Py)C≡CCO2Et followed by ethylation afforded rhenacyclobutadiene (CO)4Re(=C(4-Py)C(CO2Et)=C(OEt)). Rhenacyclobutadiene (CO)4Re(=C(4-Py)C(CO2Et)=C(OEt)) reacted with 1-ethoxyethyne in acetonitrile to give rhenabenzenes (CO)4Re(=C(4-Py)C(CO2Et)=C(OEt)CH=C(OEt)) and (CO)4Re(=C(OEt)CH=C(4-Py)C(CO2Et)=C(OEt)). Reaction of NaRe(CO)5 with (9-Anc)C≡CCO2Et followed by ethylation produced the rhenacyclobutadiene (CO)4Re(=C(CO2Et)C(9-Anc)=C(OEt)) as a rearranged product. Reaction of NaRe(CO)5 with PhC≡C(CO)Ph and EtOC≡C(CO2Et) followed by ethylation gave the rhenafurane complexes (CO)4Re(=C(Ph)CH=CPhO) and (CO)4Re(=C(OEt)CH=C(OEt)O) respectively. Reaction of NaRe(CO)5 with (9-Phena)C≡CCO2Et followed by ethylation allows the isolation of rhenacyclobutadiene (CO)4Re(=C(9-Phena)C(CO2Et)=C(OEt)) and sometimes rhenafuran (CO)4Re(=C(9-Phena)CH=C(OEt)O) complex. Rhenacyclobutadiene (CO)4Re(=C(9-Phena)C(CO2Et)=C(OEt)) reacted with 1-ethoxyethyne in acetonitrile to give rhenabenzene (CO)4Re(=C(9-Phena)C(CO2Et)=C(OEt)CH=C(OEt)). Interestingly, treatment of NaRe(CO)5 with benzyne followed by ethylation allows the isolation of rhenacyclobutadiene derivative (CO)4Re(=C(OEt)C(CH)4=C). Treatment of CpW(CO)3SnPh3 with ortho-((RC≡C)LiC6H4) (R = TMS and Ph) followed by methylation with Me3OBF4 gave tungsten carbene-acetylene complexes Cp(CO)2(SnPh3)W(=C(OMe)C6H4(C≡CR)) and tungstalactone complexes Cp(CO)2(SnPh3)W(=C(O)C(CH)4CC=CHR). Treatment of tungsten carbene-acetylene complex Cp(CO)2(SnPh3)W(=C(OMe)C6H4(C≡CR)) with iodine produced Cp(CO)2lW(=C(OMe)C6H4(C≡CR)). Reaction of tungstalactone Cp(CO)2(SnPh3)W(=C(O)C(CH)4CC=CH(Ph)) with HCl in ether led to the cleavage of Sn-Ph bond to give Cp(CO)2(SnCl2Ph)W(=C(O)C(CH)4CC=CH(Ph)). The reaction energies of the rearrangement of metallabenzenes of third row early transition metals and second row late transition metals to the corresponding Cp complexes…

Subjects/Keywords: Transition metal complexes – Synthesis ; Transition metal complexes – Structure ; Organometallic chemistry ; Rhenium ; Tungsten

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APA (6^th Edition):

Poon, K. C. (2011). Syntheses and density functional theory studies of rhenium and tungsten complexes. (Thesis). Hong Kong University of Science and Technology. Retrieved from http://repository.ust.hk/ir/Record/1783.1-7305 ; https://doi.org/10.14711/thesis-b1154984 ; http://repository.ust.hk/ir/bitstream/1783.1-7305/1/th_redirect.html

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Poon, Ka Chun. “Syntheses and density functional theory studies of rhenium and tungsten complexes.” 2011. Thesis, Hong Kong University of Science and Technology. Accessed January 20, 2021. http://repository.ust.hk/ir/Record/1783.1-7305 ; https://doi.org/10.14711/thesis-b1154984 ; http://repository.ust.hk/ir/bitstream/1783.1-7305/1/th_redirect.html.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Poon, Ka Chun. “Syntheses and density functional theory studies of rhenium and tungsten complexes.” 2011. Web. 20 Jan 2021.

Vancouver:

Poon KC. Syntheses and density functional theory studies of rhenium and tungsten complexes. [Internet] [Thesis]. Hong Kong University of Science and Technology; 2011. [cited 2021 Jan 20]. Available from: http://repository.ust.hk/ir/Record/1783.1-7305 ; https://doi.org/10.14711/thesis-b1154984 ; http://repository.ust.hk/ir/bitstream/1783.1-7305/1/th_redirect.html.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Poon KC. Syntheses and density functional theory studies of rhenium and tungsten complexes. [Thesis]. Hong Kong University of Science and Technology; 2011. Available from: http://repository.ust.hk/ir/Record/1783.1-7305 ; https://doi.org/10.14711/thesis-b1154984 ; http://repository.ust.hk/ir/bitstream/1783.1-7305/1/th_redirect.html

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Macquarie University

15. Gopalan Nair, Ashwin. Transition metal complexes bearing hemilabile pincer ligands: towards enhanced catalytic activity.

Degree: 2017, Macquarie University

URL: http://hdl.handle.net/1959.14/1273824

►

Empirical thesis.

Chapter 1. Introduction – Chapter 2. Ru(II) complexes of hemilabile pincer ligands for catalysed transfer hydrogenation reactions – Chapter 3. Ni(II) complexes of… (more)

Subjects/Keywords: Transition metal complexes; Ligands (Biochemistry); Biocatalysis; transition metal complexes; hemilabile pincer ligands

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Gopalan Nair, A. (2017). Transition metal complexes bearing hemilabile pincer ligands: towards enhanced catalytic activity. (Doctoral Dissertation). Macquarie University. Retrieved from http://hdl.handle.net/1959.14/1273824

Chicago Manual of Style (16^th Edition):

Gopalan Nair, Ashwin. “Transition metal complexes bearing hemilabile pincer ligands: towards enhanced catalytic activity.” 2017. Doctoral Dissertation, Macquarie University. Accessed January 20, 2021. http://hdl.handle.net/1959.14/1273824.

MLA Handbook (7^th Edition):

Gopalan Nair, Ashwin. “Transition metal complexes bearing hemilabile pincer ligands: towards enhanced catalytic activity.” 2017. Web. 20 Jan 2021.

Vancouver:

Gopalan Nair A. Transition metal complexes bearing hemilabile pincer ligands: towards enhanced catalytic activity. [Internet] [Doctoral dissertation]. Macquarie University; 2017. [cited 2021 Jan 20]. Available from: http://hdl.handle.net/1959.14/1273824.

Council of Science Editors:

Gopalan Nair A. Transition metal complexes bearing hemilabile pincer ligands: towards enhanced catalytic activity. [Doctoral Dissertation]. Macquarie University; 2017. Available from: http://hdl.handle.net/1959.14/1273824

Hong Kong University of Science and Technology

16. Kwan Huang, Enrique. Synthesis and reactivity of transition metal alkyl and nitrido complexes.

Degree: 2012, Hong Kong University of Science and Technology

URL: http://repository.ust.hk/ir/Record/1783.1-7684 ; https://doi.org/10.14711/thesis-b1190200 ; http://lbdiscover.ust.hk/uresolver?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rfr_id=info:sid/HKUST:SPI&rft.genre=article&rft.issn=&rft.volume=&rft.issue=&rft.date=2012&rft.spage=&rft.aulast=Kwan%20Huang&rft.aufirst=Enrique&rft.atitle=Synthesis%20and%20reactivity%20of%20transition%20metal%20alkyl%20and%20nitrido%20complexes&rft.title= ; http://repository.ust.hk/ir/bitstream/1783.1-7684/1/th_redirect.html

► Reaction of [IrIII(dtbpy)(κ2‐CH2CMe2C6H4)(C6H4t‐Bu‐2)] (1) (dtbpy = 4,4’‐di‐tert‐butyl‐2,2’‐bipyridyl) with NO2(N2O4) led to para‐selective nitration of the aryl ligands and the formation of bis‐nitrated iridium(III) complex [IrIII(dtbpy)(κ2‐CH2CMe2C6H3NO2‐4){C6H3(t‐Bu‐2)(NO2‐4)}]… (more)

▼ Reaction of [IrIII(dtbpy)(κ2‐CH2CMe2C6H4)(C6H4t‐Bu‐2)] (1) (dtbpy = 4,4’‐di‐tert‐butyl‐2,2’‐bipyridyl) with NO2(N2O4) led to para‐selective nitration of the aryl ligands and the formation of bis‐nitrated iridium(III) complex [IrIII(dtbpy)(κ2‐CH2CMe2C6H3NO2‐4){C6H3(t‐Bu‐2)(NO2‐4)}] (2). Heating 1 with neat pentafluorothiophenol resulted in the formation of [IrIV(dtbpy)(SC6F5)4] (3). [RuIVR4] (6) has been synthesized from [RuIII(acac)3] and RMgX (R = 2‐methyl‐4‐methoxyphenyl). 6 is capable of catalyzing the oxidation of benzyl alcohol with tert‐butyl hydroperoxide (TBHP). [LOEtRuVI(N)Cl2] underwent migratory insertion with [RhIII(mes)3] to afford [LOEtRuIVCl2(μ‐N(2,4‐Me2‐6‐CH2C6H2))RhIII(μ‐N(mes))LOEtRuIVCl2] (7). Activation of a methyl C‐H bond in one of the mesityl ligands in [RhIII(mes)3] was observed. [LOEtRuVI(N)Cl2] reacted with [IrIII(dtbpy)(CH2SiMe3)(SiMe3)(Me)] and [IrIII(dtbpy)R3] to give [LOEtRuVICl2(μ‐N)IrIII(dtbpy)(CH2SiMe3)(SiMe3)(Me)] (8) and [LOEtRuVICl2(μ‐N)IrIII(dtbpy)R3] (R = 2,5‐dimethylphenyl (9); 2‐methyl‐4‐methoxyphenyl (10)). Treatment of [PtII(ppyH)(ppy)Cl] (ppyH = 2‐phenylpyridine) and [PtII(ItBu)(ItBu’)][BArf4] (ItBu = 1,3‐di‐tert‐butylimidazol‐2‐ylidene; monometallated ItBu ligand represented as ItBu’; Arf = (3,5‐trifluoromethyl)phenyl) with [LOEtRuVI(N)Cl2] afforded [LOEtRuVICl2(μ‐N)PtII(ppy)Cl] (12) and [LOEtRuVICl2(μ‐N)PtII(ItBu)(ItBu’)][BArf4] (14), respectively. Oxidation of 12 by PhICl2 gave [LOEtRuVICl2(μ‐N)PtIV(ppy)Cl3] (13). [LOEtRuVI(N)Cl2] reacted with trans‐[IrIII{iPr2P(Se)NPiPr2}2(H)] to yield [LOEtRuVICl2(μ‐N)IrIII{iPr2P(Se)NPiPr2}2(H)] (15). Reactions of [LOEtRuVI(N)Cl2] with [Cp2OsII] and [(η5‐Ind)2RuII] (Cp = η5‐cyclopentadienyl; Ind = indenyl) resulted in ring slippage of the cycloolefin ligands and the formation of [{LOEtRuVICl2(μ‐N)}2OsIICp(η1‐C5H5)] (16) and [{LOEtRuVICl2(μ‐N)}2RuII(η5‐Ind)(η1‐Ind)] (17), respectively. Alkylation of [RuIV(NPPh3)(PPh3)2Cl3] with Me3SiCH2MgCl afforded the first trigonal bipyramidal ruthenium(IV) tri‐alkyl complex [RuIV(PPh3)(CH2SiMe3)3Cl] (18). 18 reacted with AgOTf (OTf = triflate) to give [RuIV(PPh3)(CH2SiMe3)3OTf] (19). Substitution of 19 with NaN3 and KSCN afforded [RuIV(PPh3)(CH2SiMe3)3N3] (21) and [RuIV(PPh3)(CH2SiMe3)3(SCN)] (22), respectively. Treatment of 19 with NaOC6F4H gave [RuIV(PPh3)(CH2SiMe3)(Me)2(OC6F4H)] (23) via the desilylation of the alkyl groups with the phenoxide. Treatment of 19 with 1,10‐phenathroline (phen) afforded [RuIIPPh3)(phen)2(Cl)][OTf] (20) via C–C elimination. [Ru(dtbpy)(NO)(CH2SiMe3)3] (24) and [Ru(tBu3‐terpy)(CO)(CH2SiMe3)2] (25) (tBu3‐terpy = 4,4’,4”‐tri‐tert‐butyl‐2,2’:6’,2”‐terpyridine) have been used as molecular precursors for ruthenium‐grafted silica. Treatment of 24 and 25 with the mesoporous silica SBA‐15 in benzene at room temperature afforded the grafted species, presumably [≡SiORu(dtbpy)(NO)(CH2SiMe3)2] (28), and [≡SiORu(tBu3‐terpy)(CO)(CH2SiMe3)] (30), respectively. 28 and 30 have been characterized by a range of spectroscopic techniques. 1 and 19 have been immobilized on silica by…

Subjects/Keywords: Transition metal compounds – Synthesis ; Organotransition metal compounds – Synthesis ; Metal complexes

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APA (6^th Edition):

Kwan Huang, E. (2012). Synthesis and reactivity of transition metal alkyl and nitrido complexes. (Thesis). Hong Kong University of Science and Technology. Retrieved from http://repository.ust.hk/ir/Record/1783.1-7684 ; https://doi.org/10.14711/thesis-b1190200 ; http://lbdiscover.ust.hk/uresolver?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rfr_id=info:sid/HKUST:SPI&rft.genre=article&rft.issn=&rft.volume=&rft.issue=&rft.date=2012&rft.spage=&rft.aulast=Kwan%20Huang&rft.aufirst=Enrique&rft.atitle=Synthesis%20and%20reactivity%20of%20transition%20metal%20alkyl%20and%20nitrido%20complexes&rft.title= ; http://repository.ust.hk/ir/bitstream/1783.1-7684/1/th_redirect.html

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Kwan Huang, Enrique. “Synthesis and reactivity of transition metal alkyl and nitrido complexes.” 2012. Thesis, Hong Kong University of Science and Technology. Accessed January 20, 2021. http://repository.ust.hk/ir/Record/1783.1-7684 ; https://doi.org/10.14711/thesis-b1190200 ; http://lbdiscover.ust.hk/uresolver?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rfr_id=info:sid/HKUST:SPI&rft.genre=article&rft.issn=&rft.volume=&rft.issue=&rft.date=2012&rft.spage=&rft.aulast=Kwan%20Huang&rft.aufirst=Enrique&rft.atitle=Synthesis%20and%20reactivity%20of%20transition%20metal%20alkyl%20and%20nitrido%20complexes&rft.title= ; http://repository.ust.hk/ir/bitstream/1783.1-7684/1/th_redirect.html.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Kwan Huang, Enrique. “Synthesis and reactivity of transition metal alkyl and nitrido complexes.” 2012. Web. 20 Jan 2021.

Vancouver:

Kwan Huang E. Synthesis and reactivity of transition metal alkyl and nitrido complexes. [Internet] [Thesis]. Hong Kong University of Science and Technology; 2012. [cited 2021 Jan 20]. Available from: http://repository.ust.hk/ir/Record/1783.1-7684 ; https://doi.org/10.14711/thesis-b1190200 ; http://lbdiscover.ust.hk/uresolver?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rfr_id=info:sid/HKUST:SPI&rft.genre=article&rft.issn=&rft.volume=&rft.issue=&rft.date=2012&rft.spage=&rft.aulast=Kwan%20Huang&rft.aufirst=Enrique&rft.atitle=Synthesis%20and%20reactivity%20of%20transition%20metal%20alkyl%20and%20nitrido%20complexes&rft.title= ; http://repository.ust.hk/ir/bitstream/1783.1-7684/1/th_redirect.html.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Kwan Huang E. Synthesis and reactivity of transition metal alkyl and nitrido complexes. [Thesis]. Hong Kong University of Science and Technology; 2012. Available from: http://repository.ust.hk/ir/Record/1783.1-7684 ; https://doi.org/10.14711/thesis-b1190200 ; http://lbdiscover.ust.hk/uresolver?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rfr_id=info:sid/HKUST:SPI&rft.genre=article&rft.issn=&rft.volume=&rft.issue=&rft.date=2012&rft.spage=&rft.aulast=Kwan%20Huang&rft.aufirst=Enrique&rft.atitle=Synthesis%20and%20reactivity%20of%20transition%20metal%20alkyl%20and%20nitrido%20complexes&rft.title= ; http://repository.ust.hk/ir/bitstream/1783.1-7684/1/th_redirect.html

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Stellenbosch University

17. Elgadi, Gamra Mohamed. I-M-I...I-M-I interactions in transition metal complexes.

Degree: MSc, 2016, Stellenbosch University

URL: http://hdl.handle.net/10019.1/98654

► ENGLISH ABSTRACT : A theoretical study of iodine to iodine (I⋯I) interactions within dimers of transition metal-iodide complexes was performed utilizing the Cambridge Structural Database… (more)

▼ ENGLISH ABSTRACT : A theoretical study of iodine to iodine (I⋯I) interactions within dimers of transition metal-iodide complexes was performed utilizing the Cambridge Structural Database (CSD) and computational methods. A comprehensive analysis of the I⋯I interactions among previously published experimental crystal structures of metal-iodide complexes included in the CSD was first carried out. The CSD search initially identified all complexes containing the I–M–I moiety in the solid state, where M is a transition metal and I is an iodine atom, and then determined all complexes exhibiting I⋯I interactions to form dimers of I–M–I....I–M–I motifs. The analysis revealed that complexes containing copper (Cu), mercury (Hg), gallium (Ga), silver (Ag), platinum (Pt), palladium (Pd) or bismuth (Bi) are the most likely to undergo such I⋯I interactions. The complexes exhibited different types of I⋯I intermolecular contacts including single, double, multiple and bifurcated interactions. The crystal structures of these complexes were then visualized and analyzed to determine the most common orientations (i.e., conformations) of the two I–M–I moieties relative to each other. The most common conformations of these interactions in the solid state were found to be chair, boat, bent, >...<– shaped and zigzag forms. Shorter distances between I atoms (indicative of stronger interactions) are most likely to occur when the relative orientation of the two I–M–I moieties is in the chair form, with average distances ranging between 3.4 and 3.8 Å. The nature and strength of the I⋯I intermolecular interactions in dimers of some selected transition metal-iodide complexes (containing Cu, Hg, Ga, Ag, Pt, Pd or Bi) were also investigated by means of Density Functional Theory (DFT). Calculations were performed in the gas phase and in an implicit solvent model using different solvents with a wide range of dielectric constants (water, ethanol and chloroform). Various levels of DFT, namely PBEPBE/aug-cc-pVTZ-pp/6-31G(d), B3LYP/LANL2DZ and B3LYP/aug-cc-pVTZ-pp/6-31G(d) were used. Optimizations in different environments using an implicit polarizable continuum solvent model showed that there was a significant dependence of the I⋯I interaction energy (EINT) and distance on the electrostatic environment in which the complex is found. As the dielectric constant increases the EINT increases significantly, while the I⋯I intermolecular distance decreases considerably. The I⋯I interactions were also studied by the natural bond orbital (NBO) and the Atoms in Molecules (AIM) analyses to determine their nature and properties. NBO analysis does not confirm the existence of an I⋯I bond within dimers of metal-iodide complexes in the gas phase or an implicit solvent model. There was no evidence of electron transfer between iodine atoms in the I⋯I moiety, indicating that the two fragments in the dimers are connected only via dispersion interactions. Since the transition metal-iodide complexes do not form stable dimers in the gas phase it was only possible to obtain AIM… Advisors/Committee Members: Esterhuysen, Catharine, Dillen, Jan, Stellenbosch University. Faculty of Science. Department of Chemistry and Polymer Science.

Subjects/Keywords: Metal-iodide complexes; Intermolecular interactions; Cambridge Structural Database (CSD); Transition metal complexes; UCTD

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Elgadi, G. M. (2016). I-M-I...I-M-I interactions in transition metal complexes. (Masters Thesis). Stellenbosch University. Retrieved from http://hdl.handle.net/10019.1/98654

Chicago Manual of Style (16^th Edition):

Elgadi, Gamra Mohamed. “I-M-I...I-M-I interactions in transition metal complexes.” 2016. Masters Thesis, Stellenbosch University. Accessed January 20, 2021. http://hdl.handle.net/10019.1/98654.

MLA Handbook (7^th Edition):

Elgadi, Gamra Mohamed. “I-M-I...I-M-I interactions in transition metal complexes.” 2016. Web. 20 Jan 2021.

Vancouver:

Elgadi GM. I-M-I...I-M-I interactions in transition metal complexes. [Internet] [Masters thesis]. Stellenbosch University; 2016. [cited 2021 Jan 20]. Available from: http://hdl.handle.net/10019.1/98654.

Council of Science Editors:

Elgadi GM. I-M-I...I-M-I interactions in transition metal complexes. [Masters Thesis]. Stellenbosch University; 2016. Available from: http://hdl.handle.net/10019.1/98654

Hong Kong University of Science and Technology

18. Lam, Tze Chung CHEM. Synthesis of late transition metal complexes containing metal-carbon multiple bonds.

Degree: 2019, Hong Kong University of Science and Technology

URL: http://repository.ust.hk/ir/Record/1783.1-101502 ; https://doi.org/10.14711/thesis-991012753265403412 ; http://repository.ust.hk/ir/bitstream/1783.1-101502/1/th_redirect.html

► Treatment of Pt(PPh₃)₄ or Pt(iMes)₂ (iMes = 1,3-bis(2,4,6-trimethylphenyl)imidazol-2-ylidene) with iminium chloride salts in THF produced [Pt(II)Cl(=CHNR₂)]⁺ complexes. Complex [PtCl(PPh₃)₂(=CHNMe₂)]BPh₄ (2.1) can be converted to [PtCl(dppf)(=CHNMe₂)]BPh₄… (more)

Subjects/Keywords: Transition metal complexes ; Transition metal compounds ; Synthesis ; Carbon compounds ; Rhenium ; Rhodium ; Platinum group catalysts

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APA (6^th Edition):

Lam, T. C. C. (2019). Synthesis of late transition metal complexes containing metal-carbon multiple bonds. (Thesis). Hong Kong University of Science and Technology. Retrieved from http://repository.ust.hk/ir/Record/1783.1-101502 ; https://doi.org/10.14711/thesis-991012753265403412 ; http://repository.ust.hk/ir/bitstream/1783.1-101502/1/th_redirect.html

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Lam, Tze Chung CHEM. “Synthesis of late transition metal complexes containing metal-carbon multiple bonds.” 2019. Thesis, Hong Kong University of Science and Technology. Accessed January 20, 2021. http://repository.ust.hk/ir/Record/1783.1-101502 ; https://doi.org/10.14711/thesis-991012753265403412 ; http://repository.ust.hk/ir/bitstream/1783.1-101502/1/th_redirect.html.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Lam, Tze Chung CHEM. “Synthesis of late transition metal complexes containing metal-carbon multiple bonds.” 2019. Web. 20 Jan 2021.

Vancouver:

Lam TCC. Synthesis of late transition metal complexes containing metal-carbon multiple bonds. [Internet] [Thesis]. Hong Kong University of Science and Technology; 2019. [cited 2021 Jan 20]. Available from: http://repository.ust.hk/ir/Record/1783.1-101502 ; https://doi.org/10.14711/thesis-991012753265403412 ; http://repository.ust.hk/ir/bitstream/1783.1-101502/1/th_redirect.html.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Lam TCC. Synthesis of late transition metal complexes containing metal-carbon multiple bonds. [Thesis]. Hong Kong University of Science and Technology; 2019. Available from: http://repository.ust.hk/ir/Record/1783.1-101502 ; https://doi.org/10.14711/thesis-991012753265403412 ; http://repository.ust.hk/ir/bitstream/1783.1-101502/1/th_redirect.html

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of North Texas

19. Nyamwihura, Rogers. Synthesis of Gold Complexes From Diphosphine Ligands and Screening Reactions of Heterocyclic Acetylacetonato (ACAC) Ligands with Transitional Metal Complexes.

Degree: 2015, University of North Texas

URL: https://digital.library.unt.edu/ark:/67531/metadc804890/

► Syntheses of diphosphine gold (I) complexes from gold THT and two ligands, 4, 5-bis (diphenylphosphino)-4-cyclopenten-1, 3-dione (BPCD) and 2,3-bis(diphenylphosphino)-N-phenylmaleimide (BPPM), were done separately. The reactions… (more)

▼ Syntheses of diphosphine gold (I) complexes from gold THT and two ligands, 4, 5-bis (diphenylphosphino)-4-cyclopenten-1, 3-dione (BPCD) and 2,3-bis(diphenylphosphino)-N-phenylmaleimide (BPPM), were done separately. The reactions happened under ice conditions followed by room temperature conditions and produced two diphosphine gold (I) complexes in moderated yield. Spectroscopic results including nuclear magnetic resonance (NMR) and X-ray crystallography were used to study and determine the structures of the products formed. Moreover, X-rays of all newly synthesized diphosphine gold (I) complexes were compared with the known X-ray structures of other phosphine and diphosphine gold (I) complexes. There were direct resemblances in terms of bond length and angle between these new diphosphine gold (I) complex structures and those already published. For instance, the bond lengths and angles from the newly prepared diphosphine gold (I) complexes were similar to those already published. Where there were some deviations in bond angles and length between the newly synthesized structures and those already published, appropriate explanation was given to explain the deviation. Heterocyclic ligands bearing acetylacetonate (ACAC) side arm(s) were prepared from ethyl malonyl chloride and the heterocyclic compounds 8-hydroxylquinoline, Syn-2-peridoxyaldoxime, quinoxalinol and 2, 6-dipyridinylmethanol. The products (heterocyclic ACAC ligands) from these reactions were screened with transition metal carbonyl compounds in thermolytic reactions. The complexes formed were studied and investigated using NMR and X-ray crystallography. Furthermore, the X-ray structures of the heterocyclic ACAC ligand or ligand A and that of rhenium complex 1 were compared with similar published X-ray structures. The comparison showed there were some similarities in terms of bond length and bond angles. Advisors/Committee Members: Richmond, Michael G., Schwartz, Martin, Acree, William E. (William Eugene).

Subjects/Keywords: Synthesis; gold complexes; diphosphine ligands; screening reactions; heterocyclic acetylacetonato ligands; transitional metal complexes; Gold.; Ligands.; Transition metal complexes.; Heterocyclic chemistry.

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APA (6^th Edition):

Nyamwihura, R. (2015). Synthesis of Gold Complexes From Diphosphine Ligands and Screening Reactions of Heterocyclic Acetylacetonato (ACAC) Ligands with Transitional Metal Complexes. (Thesis). University of North Texas. Retrieved from https://digital.library.unt.edu/ark:/67531/metadc804890/

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Nyamwihura, Rogers. “Synthesis of Gold Complexes From Diphosphine Ligands and Screening Reactions of Heterocyclic Acetylacetonato (ACAC) Ligands with Transitional Metal Complexes.” 2015. Thesis, University of North Texas. Accessed January 20, 2021. https://digital.library.unt.edu/ark:/67531/metadc804890/.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Nyamwihura, Rogers. “Synthesis of Gold Complexes From Diphosphine Ligands and Screening Reactions of Heterocyclic Acetylacetonato (ACAC) Ligands with Transitional Metal Complexes.” 2015. Web. 20 Jan 2021.

Vancouver:

Nyamwihura R. Synthesis of Gold Complexes From Diphosphine Ligands and Screening Reactions of Heterocyclic Acetylacetonato (ACAC) Ligands with Transitional Metal Complexes. [Internet] [Thesis]. University of North Texas; 2015. [cited 2021 Jan 20]. Available from: https://digital.library.unt.edu/ark:/67531/metadc804890/.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Nyamwihura R. Synthesis of Gold Complexes From Diphosphine Ligands and Screening Reactions of Heterocyclic Acetylacetonato (ACAC) Ligands with Transitional Metal Complexes. [Thesis]. University of North Texas; 2015. Available from: https://digital.library.unt.edu/ark:/67531/metadc804890/

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Simon Fraser University

20. Male, Jonathan Lloyd. The investigation of transition metal complexes containing a dative metal-metal bond.

Degree: 1996, Simon Fraser University

URL: http://summit.sfu.ca/item/7122

Subjects/Keywords: Metal-metal bonds.; Transition metal complexes.

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APA (6^th Edition):

Male, J. L. (1996). The investigation of transition metal complexes containing a dative metal-metal bond. (Thesis). Simon Fraser University. Retrieved from http://summit.sfu.ca/item/7122

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Male, Jonathan Lloyd. “The investigation of transition metal complexes containing a dative metal-metal bond.” 1996. Thesis, Simon Fraser University. Accessed January 20, 2021. http://summit.sfu.ca/item/7122.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Male, Jonathan Lloyd. “The investigation of transition metal complexes containing a dative metal-metal bond.” 1996. Web. 20 Jan 2021.

Vancouver:

Male JL. The investigation of transition metal complexes containing a dative metal-metal bond. [Internet] [Thesis]. Simon Fraser University; 1996. [cited 2021 Jan 20]. Available from: http://summit.sfu.ca/item/7122.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Male JL. The investigation of transition metal complexes containing a dative metal-metal bond. [Thesis]. Simon Fraser University; 1996. Available from: http://summit.sfu.ca/item/7122

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Rhodes University

21. Mopp, Estelle. A bioinorganic investigation of some metal complexes of the Schiff base, N,N'-bis(3-methoxysalicylaldimine)propan-2-ol.

Degree: Faculty of Science, Chemistry, 2010, Rhodes University

URL: http://hdl.handle.net/10962/d1006768

► This thesis includes the synthesis, characterisation, antioxidant and antimicrobial activities of Cu(II)-, Co(II)- and Co(III) complexes with N,N'-bis(3- methoxysalicylaldimine)propan-2-ol, 2-OH-oVANPN. The Schiff base ligand, 2-OHoVANPN,… (more)

▼ This thesis includes the synthesis, characterisation, antioxidant and antimicrobial activities of Cu(II)-, Co(II)- and Co(III) complexes with N,N'-bis(3- methoxysalicylaldimine)propan-2-ol, 2-OH-oVANPN. The Schiff base ligand, 2-OHoVANPN, is derived from o-vanillin and 1,3-diaminopropan-2-ol. The o-vanillin condensed with 1,3-diaminopropan-2-ol in a 2:1 molar ratio yields this potential tetraor pentadentate ligand. The complexes synthesized are tetra (or penta or hexa) coordinated. Formation of the complexes is symbolized as follows:- MX₂ + 2-OH-oVANPN (2:1) -> [M(2-OH-oVANPN)Xn] + HnX MX₂ + 2-OH-oVANPN (2:1) -> [Mn(2-OH-oVANPN)OH] + H₂X₂ MX₂ + (o-vanillin : diaminopropanol) (1:1) -> [M(1:1)X₂] MX₂ + (o-vanillin : diaminopropanol) (1:1) -> [M₃(1:1)X₄] M = Cu(II), Co(II) or Co(III); X = Cl; n = 1, 2. Their structural features have been deduced from their elemental analytical data, IR spectral data, and electronic spectral data. With the exception of {Cu₃(C₁₁H₁₄N₂O₃)(Cl)₄(H₂O)₆}(A4), the Cu(II) complexes were monomeric with 2-OH-oVANPN acting as a tetradentate ligand. A binuclear Co(II) complex, [Co₂(C₁₉H₁₉N₂O₅)(OH)] (B1), was synthesised and the rest of the Co(II) and Co(III) complexes were monomeric with chloride ions coordinating to the metal centre in some cases. Electronic data suggest that the cobalt(II) complexes have octahedral geometries and the copper(II) complexes have square planar structures – Co(III) is likely to be octahedral. Thermal analyses, which included the copper-block-method for determining sublimation temperatures, revealed that some copper(II) and cobalt(II) complexes are hygroscopic and sublime at 200 °C and below. DSC analyses of the Cu(II) complexes gave exotherms around 300 °C for complexes K[Cu(C₁₉H₂₀N₂O₅)(OH)]·2H₂O (A1) and [Cu(C₁₁H15N₂O₃)(Cl)₂]·2H₂O (A2) and above 400 °C for [Cu(C₁₁H₁₆N₂O₃)(Cl)₂] (A3) and {Cu₃(C₁₁H₁₄N₂O₃)(Cl)₄(H₂O)₆} (A4). Antioxidant studies were carried out against the 2,2-diphenyl-1-picrylhydrazyl radical (DPPH·). The cobalt(II) complex, [Co₂(C₁₉H₁₉N₂O₅)(OH)] (B1), which was synthesized in the presence of KOH, had no antioxidant activity, whilst the other cobalt(II) complexes, [Co(C₁₇H₁₇N₂O₅(Cl))]·1½H₂O (B2), [Co(C₁₉H₂₂N₂O₅) (Cl)₂]·5½H₂O (B3) and [Co(C₁₉H₂₂N₂O₅)(Cl)₂]·5½H₂O (B4), which were synthesised in the absence of KOH, demonstrated antioxidant activity. The latter complexes are candidates for cancer cell line testing, while [Cu(C₁₁H₁₆N₂O₃)(Cl)₂] (A3), {Cu₃(C₁₁H₁₄N₂O₃)(Cl)₄(H₂O)₆} (A4), [Co(C₁₉H₂₁N₂O₅)(Cl)₂ ]·5H₂O (C2) and [Co(C₁₉H₂₀N₂O₅)(Cl)]·3H₂O (C3) may show anticancer activity through possible hydrolysis products. Most of the complexes synthesized displayed antimicrobial activity against Escherichia coli, Staphylococcus aureus, Pseudomonas aeruginosa, Aspergillus niger and Candida albicans. The results indicated that complexes [Cu(C₁₁H₁₆N₂O₃)(Cl)₂](A3), [Co(C₁₉H₂₂N₂O₅)(Cl)₂]·5½H₂O (B3) and [Co(C₁₉H₂₁N₂O₅)(Cl)₂ ]·5H₂O (C2) are active against the Gram-negative Ps. aeruginosa and that the ligand, 2-OH-oVANPN, did not have any activity. The same trend was…

Subjects/Keywords: Schiff bases; Bioinorganic chemistry; Metal complexes; Transition metal complexes; Transition metals; Cancer – Chemotherapy; Ligands – Toxicity; Antineoplastic agents

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APA (6^th Edition):

Mopp, E. (2010). A bioinorganic investigation of some metal complexes of the Schiff base, N,N'-bis(3-methoxysalicylaldimine)propan-2-ol. (Thesis). Rhodes University. Retrieved from http://hdl.handle.net/10962/d1006768

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Mopp, Estelle. “A bioinorganic investigation of some metal complexes of the Schiff base, N,N'-bis(3-methoxysalicylaldimine)propan-2-ol.” 2010. Thesis, Rhodes University. Accessed January 20, 2021. http://hdl.handle.net/10962/d1006768.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Mopp, Estelle. “A bioinorganic investigation of some metal complexes of the Schiff base, N,N'-bis(3-methoxysalicylaldimine)propan-2-ol.” 2010. Web. 20 Jan 2021.

Vancouver:

Mopp E. A bioinorganic investigation of some metal complexes of the Schiff base, N,N'-bis(3-methoxysalicylaldimine)propan-2-ol. [Internet] [Thesis]. Rhodes University; 2010. [cited 2021 Jan 20]. Available from: http://hdl.handle.net/10962/d1006768.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Mopp E. A bioinorganic investigation of some metal complexes of the Schiff base, N,N'-bis(3-methoxysalicylaldimine)propan-2-ol. [Thesis]. Rhodes University; 2010. Available from: http://hdl.handle.net/10962/d1006768

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Hong Kong University of Science and Technology

22. Lam, Wai Han. Structural features of transition metal complexes having ligands with different electronic properties and mechanistic aspect of C-H bond activation and functionalization by transition metal complexes.

Degree: 2003, Hong Kong University of Science and Technology

URL: http://repository.ust.hk/ir/Record/1783.1-1230 ; https://doi.org/10.14711/thesis-b802511 ; http://repository.ust.hk/ir/bitstream/1783.1-1230/1/th_redirect.html

► Theoretical studies on the structural features of transition-metal complexes having ligands with different electronic properties and mechanism for stoichiometric and catalytic transition-metal reactions are reported… (more)

Subjects/Keywords: Transition metal complexes ; Transition metal complexes – Structure ; Organometallic compounds

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APA (6^th Edition):

Lam, W. H. (2003). Structural features of transition metal complexes having ligands with different electronic properties and mechanistic aspect of C-H bond activation and functionalization by transition metal complexes. (Thesis). Hong Kong University of Science and Technology. Retrieved from http://repository.ust.hk/ir/Record/1783.1-1230 ; https://doi.org/10.14711/thesis-b802511 ; http://repository.ust.hk/ir/bitstream/1783.1-1230/1/th_redirect.html

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Lam, Wai Han. “Structural features of transition metal complexes having ligands with different electronic properties and mechanistic aspect of C-H bond activation and functionalization by transition metal complexes.” 2003. Thesis, Hong Kong University of Science and Technology. Accessed January 20, 2021. http://repository.ust.hk/ir/Record/1783.1-1230 ; https://doi.org/10.14711/thesis-b802511 ; http://repository.ust.hk/ir/bitstream/1783.1-1230/1/th_redirect.html.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Lam, Wai Han. “Structural features of transition metal complexes having ligands with different electronic properties and mechanistic aspect of C-H bond activation and functionalization by transition metal complexes.” 2003. Web. 20 Jan 2021.

Vancouver:

Lam WH. Structural features of transition metal complexes having ligands with different electronic properties and mechanistic aspect of C-H bond activation and functionalization by transition metal complexes. [Internet] [Thesis]. Hong Kong University of Science and Technology; 2003. [cited 2021 Jan 20]. Available from: http://repository.ust.hk/ir/Record/1783.1-1230 ; https://doi.org/10.14711/thesis-b802511 ; http://repository.ust.hk/ir/bitstream/1783.1-1230/1/th_redirect.html.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Lam WH. Structural features of transition metal complexes having ligands with different electronic properties and mechanistic aspect of C-H bond activation and functionalization by transition metal complexes. [Thesis]. Hong Kong University of Science and Technology; 2003. Available from: http://repository.ust.hk/ir/Record/1783.1-1230 ; https://doi.org/10.14711/thesis-b802511 ; http://repository.ust.hk/ir/bitstream/1783.1-1230/1/th_redirect.html

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Illinois – Urbana-Champaign

23. Trinh, Brian Bang. Low-temperature protonation studies of transition metal alkyl complexes and the synthesis and characterization of early transition metal PCP pincer complexes and two-coordinate alkylamido complexes.

Degree: PhD, Chemistry, 2020, University of Illinois – Urbana-Champaign

URL: http://hdl.handle.net/2142/108466

► We recently reported NMR studies of an osmium alkane complex, [Cp*Os(DFMPM)(CH4)]+, where Cp* is pentamethylcyclopentadienyl and DFMPM is bis(bis(trifluoromethyl)phosphino)methane. As part of an effort to… (more)

▼ We recently reported NMR studies of an osmium alkane complex, [Cp*Os(DFMPM)(CH4)]+, where Cp* is pentamethylcyclopentadienyl and DFMPM is bis(bis(trifluoromethyl)phosphino)methane. As part of an effort to continue these studies, the procedures to synthesize the DFMPM ligand and the Cp*Os(DFMPM)Br intermediate have been improved. A laboratory-scale procedure was developed to synthesize diethylzinc in which the α-CH2 positions are isotopically labeled with carbon-13 and/or deuterium; these reagents were then employed to synthesize isotopically labeled analogs of Cp*Os(DFMPM)Et. Protonation of Cp*Os(DFMPM)Et with HOTf in CDCl2F at -130 °C affords the alkane complex [Cp*Os(DFMPM)(CH3CH3)][OTf]. The dissociation of the ethane ligand follows first-order kinetics characterized by activation parameters of ΔH‡ = 14.4 ± 4.2 kcal/mol and ΔS‡ = 7 ± 20 cal mol-1 K-1. These values are within error for those of the methane analog, ΔH‡ = 14.9 ± 1.5 kcal/mol and ΔS‡ = 12.3 ± 8.8 cal mol-1 K-1. IPR studies of the ethane complex indicate that the ethane coordinates to [Cp*Os(DFMPM)]+ through a single hydrogen atom in either an η2- or κ1-fashion, depending on whether or not the carbon atom is significantly involved in the bonding interaction. The IPR studies afford chemical shifts of δT = 1.99 ± 0.17 and δB = -10.99 ± 0.32 for the terminal and bridging hydrogen atoms of the α-methyl group of the ethane ligand, respectively. δT for the ethane complex is significantly deshielded compared to the methane analog (δT = 0.39 ± 0.05) and δB for the ethane complex is significantly shielded compared to the methane analog (δB = -8.92 ± 0.17). These data support the hypothesis that the chemical shifts of the alkane ligand are significantly affected by diamagnetic anisotropy. The upfield chemical shift of the α-carbon in the 13C NMR spectra of the ethane and methane complexes can be explained in the same way, and are not necessarily indicative of a bonding interaction with osmium. Improvements were made to the procedures for the synthesis of (RPCP)M(CH3), where RPCP is a 2,6-bis(dialkylphosphinomethyl)phenyl pincer ligand and M is a group 10 transition metal. Complexes where R is isopropyl were prepared with nickel, palladium, and platinum. Additionally, complexes where R is t-butyl or adamantyl were prepared for nickel. Protonation of these complexes with HOTf in CDCl2F did not afford observable alkane complexes. In the cases of nickel and palladium, free alkane was generated even at -130 °C; the bonding interaction between the metal and the alkane is evidently very weak. In the case of platinum, protonation was slow until the reaction was warmed to -60 °C, at which point free alkane was generated; no alkyl/hydride or alkane coordination complexes could be observed. More electron-rich metal centers may be required to prepare alkane complexes of group 10 transition metals that can be studied by NMR spectroscopy. Procedures for the synthesis of(tBuPCP)TiCl2 and (tBuPCP)CrCl2(THF), where (tBuPCP) is… Advisors/Committee Members: Girolami, Gregory S (advisor), Girolami, Gregory S (Committee Chair), Burke, Martin D (committee member), Fout, Alison R (committee member), Rauchfuss, Thomas B (committee member).

Subjects/Keywords: Transition metal alkane complexes; NMR spectroscopy; isotopic perturbation of resonance; PCP pincer complexes; transition metal nitride precursors

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APA (6^th Edition):

Trinh, B. B. (2020). Low-temperature protonation studies of transition metal alkyl complexes and the synthesis and characterization of early transition metal PCP pincer complexes and two-coordinate alkylamido complexes. (Doctoral Dissertation). University of Illinois – Urbana-Champaign. Retrieved from http://hdl.handle.net/2142/108466

Chicago Manual of Style (16^th Edition):

Trinh, Brian Bang. “Low-temperature protonation studies of transition metal alkyl complexes and the synthesis and characterization of early transition metal PCP pincer complexes and two-coordinate alkylamido complexes.” 2020. Doctoral Dissertation, University of Illinois – Urbana-Champaign. Accessed January 20, 2021. http://hdl.handle.net/2142/108466.

MLA Handbook (7^th Edition):

Trinh, Brian Bang. “Low-temperature protonation studies of transition metal alkyl complexes and the synthesis and characterization of early transition metal PCP pincer complexes and two-coordinate alkylamido complexes.” 2020. Web. 20 Jan 2021.

Vancouver:

Trinh BB. Low-temperature protonation studies of transition metal alkyl complexes and the synthesis and characterization of early transition metal PCP pincer complexes and two-coordinate alkylamido complexes. [Internet] [Doctoral dissertation]. University of Illinois – Urbana-Champaign; 2020. [cited 2021 Jan 20]. Available from: http://hdl.handle.net/2142/108466.

Council of Science Editors:

Trinh BB. Low-temperature protonation studies of transition metal alkyl complexes and the synthesis and characterization of early transition metal PCP pincer complexes and two-coordinate alkylamido complexes. [Doctoral Dissertation]. University of Illinois – Urbana-Champaign; 2020. Available from: http://hdl.handle.net/2142/108466

University of Ottawa

24. Habib, Fatemah. Investigating and Enhancing Spin Reversal Barriers in Dinuclear 4f Single-Molecule Magnets and the Ultimate Shift to Mononuclear 3d Complexes .

Degree: 2015, University of Ottawa

URL: http://hdl.handle.net/10393/32174

► In order for molecular magnetic materials to become applicable, they must retain their magnetisation at reasonable temperatures, which can be achieved with high energy barriers… (more)

▼ In order for molecular magnetic materials to become applicable, they must retain their magnetisation at reasonable temperatures, which can be achieved with high energy barriers for spin reversal and high blocking temperatures. In the field of Single-Molecule Magnets (SMMs), over the last decade, the main focus has shifted from large spin complexes to highly anisotropic systems which have displayed record energy barriers. There are two main methods of increasing magnetic anisotropy in a complex: i) Choosing a metal ion that boasts high magnetic anisotropy then coupling two such ions through magnetic interactions to induce large global anisotropy, and ii) maintain a low spin or use a mononuclear complex while minimising quantum tunnelling of the magnetisation by controlling the geometric features of the metal ion. Both strategies are equally valid and have been explored in this thesis using dinuclear lanthanide as well as mononuclear 3d complexes. In the pursuit of high-barrier SMMs via alignment of anisotropy axes, two dinuclear, quadruple-stranded helicates and one mesocate were isolated and are described in detail herein, both structurally and magnetically. Furthermore, theoretical calculations have been performed to determine the energies of Kramers doublets on each DyIII centre to derive magneto-structural correlations. To induce magnetic interactions between DyIII ions, a centrosymmetric dinuclear SMM was synthesised. Investigation of the crucial DyIII…DyIII interaction as well as its effect on the quantum tunnelling of the magnetisation has been carried out using ab initio calculations and magnetic dilution studies. Using the same system, a method of greatly enhancing the energy barriers in SMMs has been developed. It involves modifying the coordinating ligands to include electron withdrawing groups in order to yield more anisotropic metal ions. The energy barrier for spin reversal has been increased 7-fold in one case. While lanthanide chemistry has proven to be quite versatile and promising, a new branch of nanomagnets is currently being pursued: mononuclear 3d complexes as SMMs. The advantages of 3d metals include high anisotropy per ion, low spin (as anisotropy decreases with increasing spin), well-understood electronic structures and clear correlations between geometry and magnetic anisotropy. The structural and magnetic properties of three complexes based on CoII and terpyridine ligands as well as a seven-coordinate CoII complex with positive anisotropy are discussed at length. The unique slow relaxation dynamics and spin crossover behaviour has been followed using DFT and ab initio calculations, as well as EPR and magnetic dilution studies. Overall, this thesis describes the efforts taken to synthesise high-barrier nanomagnets through understanding the origins and mechanisms of slow magnetic relaxation in both lanthanide and 3d metal complexes.

Subjects/Keywords: Single-Molecule Magnets; Lanthanide Complexes; Transition Metal Complexes; Molecular Magnetism; Coordination Chemistry

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APA (6^th Edition):

Habib, F. (2015). Investigating and Enhancing Spin Reversal Barriers in Dinuclear 4f Single-Molecule Magnets and the Ultimate Shift to Mononuclear 3d Complexes . (Thesis). University of Ottawa. Retrieved from http://hdl.handle.net/10393/32174

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Habib, Fatemah. “Investigating and Enhancing Spin Reversal Barriers in Dinuclear 4f Single-Molecule Magnets and the Ultimate Shift to Mononuclear 3d Complexes .” 2015. Thesis, University of Ottawa. Accessed January 20, 2021. http://hdl.handle.net/10393/32174.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Habib, Fatemah. “Investigating and Enhancing Spin Reversal Barriers in Dinuclear 4f Single-Molecule Magnets and the Ultimate Shift to Mononuclear 3d Complexes .” 2015. Web. 20 Jan 2021.

Vancouver:

Habib F. Investigating and Enhancing Spin Reversal Barriers in Dinuclear 4f Single-Molecule Magnets and the Ultimate Shift to Mononuclear 3d Complexes . [Internet] [Thesis]. University of Ottawa; 2015. [cited 2021 Jan 20]. Available from: http://hdl.handle.net/10393/32174.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Habib F. Investigating and Enhancing Spin Reversal Barriers in Dinuclear 4f Single-Molecule Magnets and the Ultimate Shift to Mononuclear 3d Complexes . [Thesis]. University of Ottawa; 2015. Available from: http://hdl.handle.net/10393/32174

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Hong Kong

25. 司徒立. The structural chemistry of coordination compounds containing d-block or f-block metals.

Degree: 2010, University of Hong Kong

URL: http://hdl.handle.net/10722/173858

Subjects/Keywords: Transition metal complexes.; Transition metals.; Transition metal compounds.

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APA (6^th Edition):

司徒立.. (2010). The structural chemistry of coordination compounds containing d-block or f-block metals. (Thesis). University of Hong Kong. Retrieved from http://hdl.handle.net/10722/173858

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

司徒立.. “The structural chemistry of coordination compounds containing d-block or f-block metals.” 2010. Thesis, University of Hong Kong. Accessed January 20, 2021. http://hdl.handle.net/10722/173858.

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

司徒立.. “The structural chemistry of coordination compounds containing d-block or f-block metals.” 2010. Web. 20 Jan 2021.

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

Vancouver:

司徒立.. The structural chemistry of coordination compounds containing d-block or f-block metals. [Internet] [Thesis]. University of Hong Kong; 2010. [cited 2021 Jan 20]. Available from: http://hdl.handle.net/10722/173858.

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

司徒立.. The structural chemistry of coordination compounds containing d-block or f-block metals. [Thesis]. University of Hong Kong; 2010. Available from: http://hdl.handle.net/10722/173858

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete
Not specified: Masters Thesis or Doctoral Dissertation

Indian Institute of Science

26. Naidu, Kola Sattaiah. Chemistry of Ru(II) Complexes Bearing Sigma Bonded H-X (X = H, Si, C) Species/Fragments.

Degree: PhD, Faculty of Science, 2018, Indian Institute of Science

URL: http://etd.iisc.ac.in/handle/2005/3383

► Introduction The chemistry of transitional metal complexes bearing σ-bonded H−X (X = H, Si, C) species/fragments, the so called σ-complexes, are key intermediates in catalytic… (more)

▼ Introduction The chemistry of transitional metal complexes bearing σ-bonded H−X (X = H, Si, C) species/fragments, the so called σ-complexes, are key intermediates in catalytic processes such as hydrogenation, hydrosilylation, alkane functionalization etc. Particularly, the σ-H2 complexes form the best-known group of σ-complexes in which H2 is bound to the metal center in η2-fashion. Several well characterized examples of η2-silane and η2-borane complexes have also been reported. Moreover, in recent years, the carbon analogues of these complexes in which alkanes are coordinated through η2-C-H bonds to the metal center have been attracting the attention of organometallic chemists. An approach towards direct functionalization of σ-bonds in simple alkanes is the heterolytic activation of the C−H bond using highly electrophilic complexes. After all, for fine catalyst design and the selective functionalization of H−H, silanes or simple alkanes, it is necessary to understand the bonding nature of these σ-complexes in depth. Objectives The objectives of this work are as follows a) An attempt to stabilize and gain insights into the bonding nature and reactivity behavior of various sigma ligands on ruthenium center [Ru(η2-HX)(Tpms)(PPh3)2][OTf], (X = H, SiR (R = Me3 or Me2Ph) and CH3). b) Synthesis, characterization and reactivity studies of electrophilic ruthenium(II) complexes bearing (C6F5)2PCH2CH2P(C6F5)2 (dfppe) ligand towards heterolysis of H2. c) An approach towards preparation of insoluble molecular clusters from [Ru(P(OH)3)(dppe)2][OTf]2 complex and Zn, Cd and Cu acetates to realize σ-bond activation under heterogeneous conditions. Significant results In our attempts to gain insights into the bonding nature and reactivity behavior of σ-H2, silane and methane complexes, we followed two strategies to generate these complexes in solution. First, we synthesized and well characterized two new Ru(II)-complexes [RuH(Tpms)(PPh3)2] and [Ru(OTf)(Tpms)(PPh3)2], (OTf = trifluoromethane sulfonate) where Ru-H and Ru-OTf are the key reactive centers, followed by their subsequent reactions with electrophilic reagents such as HOTf, Me3SiOTf and CH3OTf and with H2, PhMe2SiH and CH4 at low temperature, respectively. These reactions finally resulted in the characterization of σ-H2 and σ-silane complexes, however, no σ-methane complex was observed even at low temperature (Scheme 1). Scheme 1 In order to realize highly eletrophilic metal complexes, a chelating fluorinated phosphine ligand 1,2-bis-(pentafluorophenylphosphino)ethane, (C6F5)2PCH2CH2P(C6F5)2 (dfppe) was employed and the synthesis and structural characterization of a series of new, Ru(II) hydride complexes [RuH(P(OMe)3)(bpy)(dfppe)][OTf], cis-[RuH2(dfppe)(PPh3)2] and [RuH(CO)Cl(PPh3)(dfppe)] were accomplished. Protonation reaction of the hydride complexes [RuH(P(OMe)3)(bpy)(dfppe)][OTf] (Scheme 2) and [RuH(CO)Cl(PPh3)(dfppe)] (Scheme 3) with HOTf at low temperature gave free H2 and five-coordinate species [Ru(P(OMe)3)(bpy)(dfppe)][OTf]2 and… Advisors/Committee Members: Jagirdar, Balaji R (advisor).

Subjects/Keywords: Ruthenium(II) Complexes; Transition Metal Complexes; σ-H2 Complexes; Electrophilic Ruthenium Complexes; Eletrophilic Ruthenium Molecular Metal Cluster Complexes; Transition Metal Sigma complexes; σ(Sigma)-complexes; Intramolecular Heterolysis; Intermolecular Heterolysis; Silanes; σ-bond Activation; Inorganic Chemistry

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APA (6^th Edition):

Naidu, K. S. (2018). Chemistry of Ru(II) Complexes Bearing Sigma Bonded H-X (X = H, Si, C) Species/Fragments. (Doctoral Dissertation). Indian Institute of Science. Retrieved from http://etd.iisc.ac.in/handle/2005/3383

Chicago Manual of Style (16^th Edition):

Naidu, Kola Sattaiah. “Chemistry of Ru(II) Complexes Bearing Sigma Bonded H-X (X = H, Si, C) Species/Fragments.” 2018. Doctoral Dissertation, Indian Institute of Science. Accessed January 20, 2021. http://etd.iisc.ac.in/handle/2005/3383.

MLA Handbook (7^th Edition):

Naidu, Kola Sattaiah. “Chemistry of Ru(II) Complexes Bearing Sigma Bonded H-X (X = H, Si, C) Species/Fragments.” 2018. Web. 20 Jan 2021.

Vancouver:

Naidu KS. Chemistry of Ru(II) Complexes Bearing Sigma Bonded H-X (X = H, Si, C) Species/Fragments. [Internet] [Doctoral dissertation]. Indian Institute of Science; 2018. [cited 2021 Jan 20]. Available from: http://etd.iisc.ac.in/handle/2005/3383.

Council of Science Editors:

Naidu KS. Chemistry of Ru(II) Complexes Bearing Sigma Bonded H-X (X = H, Si, C) Species/Fragments. [Doctoral Dissertation]. Indian Institute of Science; 2018. Available from: http://etd.iisc.ac.in/handle/2005/3383

University of Manchester

27. Alqahtani, Fatimah. The synthesis and structural characterisation of novel transition metal complexes of aromatic ligands.

Degree: 2018, University of Manchester

URL: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:315233

►

A series of first-row transition metal complexes incorporating seven classes of planar heterocyclic ligands based on 2,2ÃŠÂ¹-bipyridine (bipy) and 1,10-phenanthroline (phen), which have aromatic ÃÂ€-ÃÂ€… (more)

Subjects/Keywords: X-ray crystallography- Single crystal X-ray diffraction- Transition metal complexes

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APA (6^th Edition):

Alqahtani, F. (2018). The synthesis and structural characterisation of novel transition metal complexes of aromatic ligands. (Doctoral Dissertation). University of Manchester. Retrieved from http://www.manchester.ac.uk/escholar/uk-ac-man-scw:315233

Chicago Manual of Style (16^th Edition):

Alqahtani, Fatimah. “The synthesis and structural characterisation of novel transition metal complexes of aromatic ligands.” 2018. Doctoral Dissertation, University of Manchester. Accessed January 20, 2021. http://www.manchester.ac.uk/escholar/uk-ac-man-scw:315233.

MLA Handbook (7^th Edition):

Alqahtani, Fatimah. “The synthesis and structural characterisation of novel transition metal complexes of aromatic ligands.” 2018. Web. 20 Jan 2021.

Vancouver:

Alqahtani F. The synthesis and structural characterisation of novel transition metal complexes of aromatic ligands. [Internet] [Doctoral dissertation]. University of Manchester; 2018. [cited 2021 Jan 20]. Available from: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:315233.

Council of Science Editors:

Alqahtani F. The synthesis and structural characterisation of novel transition metal complexes of aromatic ligands. [Doctoral Dissertation]. University of Manchester; 2018. Available from: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:315233

28. Rapheal,P F. Diversity in Structural and Spectural Characteristics of Some Transition Metal Complexes Derived From Aldehyde Based Thiosemicarbazone Ligands.

Degree: 2006, Cochin University of Science and Technology

URL: http://dyuthi.cusat.ac.in/purl/90

► The study deals with the diversity in structural and spectural characteristics of some transition metal complexes derived from aldehyde based thiosemicarbazone ligands thiosemicarbazones are a… (more)

Subjects/Keywords: Transition metal complexes; Thiosemicarbazone; Ligands

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APA (6^th Edition):

F, R. (2006). Diversity in Structural and Spectural Characteristics of Some Transition Metal Complexes Derived From Aldehyde Based Thiosemicarbazone Ligands. (Thesis). Cochin University of Science and Technology. Retrieved from http://dyuthi.cusat.ac.in/purl/90

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

F, Rapheal,P. “Diversity in Structural and Spectural Characteristics of Some Transition Metal Complexes Derived From Aldehyde Based Thiosemicarbazone Ligands.” 2006. Thesis, Cochin University of Science and Technology. Accessed January 20, 2021. http://dyuthi.cusat.ac.in/purl/90.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

F, Rapheal,P. “Diversity in Structural and Spectural Characteristics of Some Transition Metal Complexes Derived From Aldehyde Based Thiosemicarbazone Ligands.” 2006. Web. 20 Jan 2021.

Vancouver:

F R. Diversity in Structural and Spectural Characteristics of Some Transition Metal Complexes Derived From Aldehyde Based Thiosemicarbazone Ligands. [Internet] [Thesis]. Cochin University of Science and Technology; 2006. [cited 2021 Jan 20]. Available from: http://dyuthi.cusat.ac.in/purl/90.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

F R. Diversity in Structural and Spectural Characteristics of Some Transition Metal Complexes Derived From Aldehyde Based Thiosemicarbazone Ligands. [Thesis]. Cochin University of Science and Technology; 2006. Available from: http://dyuthi.cusat.ac.in/purl/90

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

29. Srivastava, Pramod Chandra. Studies on transition metal complexes with substance of bilogical activity; -.

Degree: Chemistry, 1977, INFLIBNET

URL: http://shodhganga.inflibnet.ac.in/handle/10603/44972

Available

Bibliography p.150-171

Advisors/Committee Members: Narain, Gopal.

Subjects/Keywords: bilogical activity; transition metal complexes

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APA (6^th Edition):

Srivastava, P. C. (1977). Studies on transition metal complexes with substance of bilogical activity; -. (Thesis). INFLIBNET. Retrieved from http://shodhganga.inflibnet.ac.in/handle/10603/44972

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Srivastava, Pramod Chandra. “Studies on transition metal complexes with substance of bilogical activity; -.” 1977. Thesis, INFLIBNET. Accessed January 20, 2021. http://shodhganga.inflibnet.ac.in/handle/10603/44972.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Srivastava, Pramod Chandra. “Studies on transition metal complexes with substance of bilogical activity; -.” 1977. Web. 20 Jan 2021.

Vancouver:

Srivastava PC. Studies on transition metal complexes with substance of bilogical activity; -. [Internet] [Thesis]. INFLIBNET; 1977. [cited 2021 Jan 20]. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/44972.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Srivastava PC. Studies on transition metal complexes with substance of bilogical activity; -. [Thesis]. INFLIBNET; 1977. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/44972

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

30. Pundir, Meenakshi. Physico chemical studies on transition metal complexes with new macrocyclic ligands;.

Degree: Chemistry, 2006, Chaudhary Charan Singh University

URL: http://shodhganga.inflibnet.ac.in/handle/10603/38800

None newline

Summary p.241-251

Advisors/Committee Members: Tyagi, V P.

Subjects/Keywords: Macrocyclic ligands; Transition metal complexes

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APA (6^th Edition):

Pundir, M. (2006). Physico chemical studies on transition metal complexes with new macrocyclic ligands;. (Thesis). Chaudhary Charan Singh University. Retrieved from http://shodhganga.inflibnet.ac.in/handle/10603/38800

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Pundir, Meenakshi. “Physico chemical studies on transition metal complexes with new macrocyclic ligands;.” 2006. Thesis, Chaudhary Charan Singh University. Accessed January 20, 2021. http://shodhganga.inflibnet.ac.in/handle/10603/38800.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Pundir, Meenakshi. “Physico chemical studies on transition metal complexes with new macrocyclic ligands;.” 2006. Web. 20 Jan 2021.

Vancouver:

Pundir M. Physico chemical studies on transition metal complexes with new macrocyclic ligands;. [Internet] [Thesis]. Chaudhary Charan Singh University; 2006. [cited 2021 Jan 20]. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/38800.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Pundir M. Physico chemical studies on transition metal complexes with new macrocyclic ligands;. [Thesis]. Chaudhary Charan Singh University; 2006. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/38800

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

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Open Access Theses and Dissertations