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You searched for subject:(Ion pair receptor). Showing records 1 – 3 of 3 total matches.

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Clemson University

1. Maity, Krishnendu. Understanding the Interactions of Anions with Lewis Acids and π-Acids to Develop Efficient Ion-Pair Receptors.

Degree: PhD, Chemistry, 2018, Clemson University

Anions play vital roles in many industrial, environmental, chemical, and biological processes. Due to their adverse effects on our health and ecosystem, precise regulation of toxic anions and ion-pairs are of prime importance. A majority of anion receptors rely on subtle supramolecular forces like electrostatic interactions and hydrogen bonding to bind anions, and the main source of selectivity comes from the shape and size complementarity of the receptors and guest anions. In aprotic solvents, interactions of anions with π-acidic receptors such as naphthalenediimides (NDIs) and perylenediimides (PDIs), and Lewis acids, such as silver ion, depend on their electron donating ability, which runs parallel to their Lewis basicity. While non-basic larger charge-diffuse anions engage in anion–π and CH···anion interactions in aprotic solvents, stronger Lewis basic and less solvated hard anions participate in electron transfer (ET) and weaker Lewis basic anions establish charge transfer (CT) interactions. The anion-induced electron transfer from strong Lewis basic anions produces colorful radical anions and dianions of π-acids leading to colorimetric anion sensing. Anion-induced electron transfer (AIET) is not only limited to π-acids. Reduction of silver(I) to produce silver(0) mirrors and luminescent silver(0) nanoparticles show that AIET can happen from fluoride to a Lewis acid, too. On the other hand, NDI-imine-based heteroditopic ion-pair receptors are developed to capture both cations and charge diffuse anions, cooperatively. These synthetic receptors exploited anion–π and CH···anion interactions to bind anions cooperatively in the presence of metal ions such as Zn(II) and Cd(II). Advisors/Committee Members: Sourav Saha, Committee Chair, Stephen Creager, William T. Pennington, Joseph S. Thrasher.

Subjects/Keywords: Anion induced electron transfer; Ion-pair receptor; Naphthalenediimide

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APA (6th Edition):

Maity, K. (2018). Understanding the Interactions of Anions with Lewis Acids and π-Acids to Develop Efficient Ion-Pair Receptors. (Doctoral Dissertation). Clemson University. Retrieved from https://tigerprints.clemson.edu/all_dissertations/2261

Chicago Manual of Style (16th Edition):

Maity, Krishnendu. “Understanding the Interactions of Anions with Lewis Acids and π-Acids to Develop Efficient Ion-Pair Receptors.” 2018. Doctoral Dissertation, Clemson University. Accessed November 28, 2020. https://tigerprints.clemson.edu/all_dissertations/2261.

MLA Handbook (7th Edition):

Maity, Krishnendu. “Understanding the Interactions of Anions with Lewis Acids and π-Acids to Develop Efficient Ion-Pair Receptors.” 2018. Web. 28 Nov 2020.

Vancouver:

Maity K. Understanding the Interactions of Anions with Lewis Acids and π-Acids to Develop Efficient Ion-Pair Receptors. [Internet] [Doctoral dissertation]. Clemson University; 2018. [cited 2020 Nov 28]. Available from: https://tigerprints.clemson.edu/all_dissertations/2261.

Council of Science Editors:

Maity K. Understanding the Interactions of Anions with Lewis Acids and π-Acids to Develop Efficient Ion-Pair Receptors. [Doctoral Dissertation]. Clemson University; 2018. Available from: https://tigerprints.clemson.edu/all_dissertations/2261


University of Texas – Austin

2. Yeon, Yerim. Calix[4]arene-based ion or ion-pair receptors.

Degree: PhD, Chemistry, 2018, University of Texas – Austin

Calix[4]arene derivatives are one of the most important supramolecular scaffolds. They have been extensively exploited to build more elaborate systems. Calix[4]arene derivatives can stabilize host-guest complexes with various ions and neutral molecular guests through non-covalent interactions (e.g., hydrogen bonding, electrostatic interactions and cation-π interactions). This dissertation describes efforts to develop more efficient calix[4]arene-based ion and ion-pair receptors. Chapter 1 describes an overview of sensitive ion selective chromogenic and fluoregenic sensors based on calix[4]arene derivatives. Chapter 2 details a chromogenic calix[4]arene-calix[4]pyrrole sensor system formed by appending an indane substituent to the β-pyrrole position of the calix[4]pyrrole portion of the hybrid and its use in detecting cesium salts. The indane substituted calix[4]arene-calix[4]pyrrole system gives rise to a colorimetric response when only exposed to simple ion pairs containing the cesium cation. Chapter 3 describes amido-indole incorporated calix[4]arene anion receptors. An amido-indole moieties appended calix[4]arene provides multiple hydrogen bond donors for the interaction with anions. In Chapter 4, graphene field-effect transistors (GFETs) are introduced for cesium ion sensing based on electrostatic measurements. In this work, a crown-6-ether strapped calix[4]arene derivative that adopts a cesium ion selective conformation was prepared. Then, it was attached to various graphene field-effect transistors (GFETs) via π−π interactions. The co-complexation of Cs⁺ ion and calix[4]arene receptor on the GFETs alters the electronic behavior of the system in an ion and concentration dependent manner. This work serves to extend the fundamental chemistry of calix[4]arene-based cesium ion recognition to new research areas. Lastly, an experimental section and characterization data are provided in Chapter 5. Advisors/Committee Members: Sessler, Jonathan L. (advisor), Liu, Hung-wen (committee member), Keatinge-Clay, Adrian T (committee member), Dong, Guangbin (committee member), Kerwin, Sean M (committee member).

Subjects/Keywords: Calix[4]arene; Sensor; Colorimetric; Chromogenic; Cesium; Lithium; Graphene; Ion-pair receptor; Anion receptor

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

APA (6th Edition):

Yeon, Y. (2018). Calix[4]arene-based ion or ion-pair receptors. (Doctoral Dissertation). University of Texas – Austin. Retrieved from http://hdl.handle.net/2152/71510

Chicago Manual of Style (16th Edition):

Yeon, Yerim. “Calix[4]arene-based ion or ion-pair receptors.” 2018. Doctoral Dissertation, University of Texas – Austin. Accessed November 28, 2020. http://hdl.handle.net/2152/71510.

MLA Handbook (7th Edition):

Yeon, Yerim. “Calix[4]arene-based ion or ion-pair receptors.” 2018. Web. 28 Nov 2020.

Vancouver:

Yeon Y. Calix[4]arene-based ion or ion-pair receptors. [Internet] [Doctoral dissertation]. University of Texas – Austin; 2018. [cited 2020 Nov 28]. Available from: http://hdl.handle.net/2152/71510.

Council of Science Editors:

Yeon Y. Calix[4]arene-based ion or ion-pair receptors. [Doctoral Dissertation]. University of Texas – Austin; 2018. Available from: http://hdl.handle.net/2152/71510

3. -7333-2493. New calix[4]pyrrole derivatives for ionic and neutral guests.

Degree: MA, Chemistry, 2018, University of Texas – Austin

The first chapter is a review of fluorescent sensors for explosives detection and ion pair receptors. In the second chapter, two novel pyrene-appended calix[4]pyrroles are reported. Their binding properties to various guests including aromatic explosives and anions are discussed. The third chapter describes the design and synthetic attempts of two calix[4]arene-strapped calix[4]pyrroles to serve as ion pair receptor in order to be selective for potassium salts and sodium salts, respectively Advisors/Committee Members: Sessler, Jonathan L. (advisor).

Subjects/Keywords: Explosives detection; Calix[4]pyrrole; Ion pair receptor

…systems displayed cooperative ion-pair recognition whereas the receptor displayed no affinity… …cancer treatment. 8 Not only are ion pair receptor able to recognized various ions, they also… …5 Figure 1.2 Three limiting modes for ion-pair interactions. C+: cation. A-: anion. S… …emission. 6 1.4 GENERAL INTRODUCTION TO ION PAIR RECEPTORS A great deal of effort has been… …of control over ion recognition, ion pair receptors, bearing both cation and anion binding… 

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

APA (6th Edition):

-7333-2493. (2018). New calix[4]pyrrole derivatives for ionic and neutral guests. (Masters Thesis). University of Texas – Austin. Retrieved from http://dx.doi.org/10.26153/tsw/2838

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

Chicago Manual of Style (16th Edition):

-7333-2493. “New calix[4]pyrrole derivatives for ionic and neutral guests.” 2018. Masters Thesis, University of Texas – Austin. Accessed November 28, 2020. http://dx.doi.org/10.26153/tsw/2838.

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

MLA Handbook (7th Edition):

-7333-2493. “New calix[4]pyrrole derivatives for ionic and neutral guests.” 2018. Web. 28 Nov 2020.

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

Vancouver:

-7333-2493. New calix[4]pyrrole derivatives for ionic and neutral guests. [Internet] [Masters thesis]. University of Texas – Austin; 2018. [cited 2020 Nov 28]. Available from: http://dx.doi.org/10.26153/tsw/2838.

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

Council of Science Editors:

-7333-2493. New calix[4]pyrrole derivatives for ionic and neutral guests. [Masters Thesis]. University of Texas – Austin; 2018. Available from: http://dx.doi.org/10.26153/tsw/2838

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

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