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University of North Texas

1. Al-Share, Mohammad A. (Mohammad Abdel). Anomalous Behavior in the Rotational Spectra of the v₈=2 and the v₈=3 Vibrations for the ¹³C and ¹⁵N Tagged Isotopes of the CH₃CN Molecule in the Frequency Range 17-95 GHz.

Degree: 1990, University of North Texas

The rotational microwave spectra of the three isotopes (13CH312C15N, 12CH313C15N, and 13CH313C15N) of the methyl cyanide molecule in the v8=3, v8=2, v7=1 and v4=1 vibrational energy levels for the rotational components 1£J£5 (for a range of frequency 17-95 GHz.) were experimentally and theoretically examined. Rotational components in each vibration were measured to determine the mutual interactions in each vibration between any of the vibrational levels investigated. The method of isotopic substitution was employed for internal tuning of each vibrational level by single and double substitution of 13C in the two sites of the molecule. It was found that relative frequencies within each vibration with respect to another vibration were shifted in a systematic way. The results given in this work were interpreted on the basis of these energy shifts. Large departure between experimentally measured and theoretically predicted frequency for the quantum sets (J, K=±l, ϑ=±1), Kϑ-l in the v8=3 vibrational states for the 13c and 15N tagged isotopes of CH3CN showed anomalous behavior which was explained as being due to Fermi resonance. Accidently strong resonances (ASR) were introduced to account for some departures which were not explained by Fermi resonance. Advisors/Committee Members: Roberts, James Andrew, Mackey, H. J., Sears, Raymond E., Kobe, Donald Holm, Deering, William D., Theriot, Leroy James.

Subjects/Keywords: rotational microwave spectra; vibrational energy levels; isotopic substitution; methyl cyanide; vibration-rotation interaction theory; Molecular rotation.; Vibrational spectra.

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

APA (6th Edition):

Al-Share, M. A. (. A. (1990). Anomalous Behavior in the Rotational Spectra of the v₈=2 and the v₈=3 Vibrations for the ¹³C and ¹⁵N Tagged Isotopes of the CH₃CN Molecule in the Frequency Range 17-95 GHz. (Thesis). University of North Texas. Retrieved from https://digital.library.unt.edu/ark:/67531/metadc330976/

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

Chicago Manual of Style (16th Edition):

Al-Share, Mohammad A (Mohammad Abdel). “Anomalous Behavior in the Rotational Spectra of the v₈=2 and the v₈=3 Vibrations for the ¹³C and ¹⁵N Tagged Isotopes of the CH₃CN Molecule in the Frequency Range 17-95 GHz.” 1990. Thesis, University of North Texas. Accessed October 29, 2020. https://digital.library.unt.edu/ark:/67531/metadc330976/.

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

MLA Handbook (7th Edition):

Al-Share, Mohammad A (Mohammad Abdel). “Anomalous Behavior in the Rotational Spectra of the v₈=2 and the v₈=3 Vibrations for the ¹³C and ¹⁵N Tagged Isotopes of the CH₃CN Molecule in the Frequency Range 17-95 GHz.” 1990. Web. 29 Oct 2020.

Vancouver:

Al-Share MA(A. Anomalous Behavior in the Rotational Spectra of the v₈=2 and the v₈=3 Vibrations for the ¹³C and ¹⁵N Tagged Isotopes of the CH₃CN Molecule in the Frequency Range 17-95 GHz. [Internet] [Thesis]. University of North Texas; 1990. [cited 2020 Oct 29]. Available from: https://digital.library.unt.edu/ark:/67531/metadc330976/.

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

Council of Science Editors:

Al-Share MA(A. Anomalous Behavior in the Rotational Spectra of the v₈=2 and the v₈=3 Vibrations for the ¹³C and ¹⁵N Tagged Isotopes of the CH₃CN Molecule in the Frequency Range 17-95 GHz. [Thesis]. University of North Texas; 1990. Available from: https://digital.library.unt.edu/ark:/67531/metadc330976/

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

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