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Title: Spectroscopic and thermochemical studies of some nitrosonium and square planar MC1 4-(M=I,Au) species
Author: Page, Terence Henry
ISNI:       0000 0004 5998 3590
Awarding Body: University of London
Current Institution: Royal Holloway, University of London
Date of Award: 1978
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The course of the decomposition of the nitrosonium ion by aqueous base has been investigated, and the formation of both nitrite and nitrate ions has been established. Measurements of the enthalpies of decomposition of NOClO4(c), NOHSO4(c) and (NO)2S2O7(c) permit evaluation of the values: The limitations of this approach and the marked deviations of these values from previously published data are discussed. The system NOCl-BCl3 has been investigated by Raman spectroscopy and two apparent modifications of a volatile 1:1 solid adduct have been characterised as NO+BC14 . Measurement of the temperature dependence of the dissociation pressure leads to a value for of -391 kJ mol . The evaluation of a thermochemical radius for NO is described. Methods of solid-state vibrational spectroscopic analysis are reviewed and their application to various IC14 and AuC14 compounds with as cations is presented. Two modifications of the compound SC13+IC14 have been characterised, one of which is shown to be identical with the compound previously described as a mixed crystal containing and Secondary bonding interactions as contributions to the low symmetry field created at anion sites in some of these compounds are postulated in order to explain the vibrational and NQR spectra. The combined use of vibrational spectroscopy and NQR in structural chemistry is briefly discussed.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available
Keywords: Physical Chemistry