Microwave Spectral Studies on Nitrosyl Cyanide and Other Molecules

Dickinson, Ronald (1977) Microwave Spectral Studies on Nitrosyl Cyanide and Other Molecules. PhD thesis, University of Glasgow.

Abstract

Microwave spectral studies on nitrosyl cyanide, maleimide, p-fluoroaniline and 9-thiabicyclo[3,3,1] nona-2,6-diene, and a discussion on the microwave analysis of deutero-propene mixtures are presented. A brief introduction, Chapter 1, has been included to provide information on the general structure of the thesis and bibliography. Nitrosyl cyanide is an interesting molecule which has not previously been isolated or characterised. A comprehensive investigation of its physical properties has been carried out by microwave spectroscopy. In Chapter 2, the molecular structure, dipole moment and 14N nuclear quadru-pole coupling constants are presented and discussed. Also included is information on molecular vibrations. Theoretical calculations of physical properties have been performed, the results of which are compared with experimental values. The microwave spectra of normal and N-deutero maleimide have been analysed. The spectra, in particular the inertial defects, are discussed in terms of molecular planarity. The dipole moment has been determined. This forms the substance of Chapter 3. In the fourth chapter, the microwave spectrum of ND2-p-fluoroaniline is presented. Spectra of the normal and NHD species have been analysed previously, allowing calculation of the amine group geometry, which is discussed in relation to those of aniline and p-chloroaniline. The microwave spectrum of 9-thiabicyclc[3,3,1] nona-2,6-diene has been measured and analysed, as detailed in Chapter 5. Microwave spectroscopy has an important application in the analysis of deuteropropene mixtures formed by heterogeneous catalysis. In Chapter 6 the theoretical and practical considerations involved in this procedure, with examples of two mechanistic studies, are presented. This technique is not restricted to propene and may be applied to other catalytic reactions.

• Item Type: Thesis (PhD)
• Qualification Level: Doctoral
• Keywords: Molecular chemistry, Analytical chemistry
• Date of Award: 1977
• Depositing User: Enlighten Team
• Unique ID: glathesis:1977-78747
• Copyright: Copyright of this thesis is held by the author.
• Date Deposited: 30 Jan 2020 14:57
• Last Modified: 30 Jan 2020 14:57
• URI: https://theses.gla.ac.uk/id/eprint/78747