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Please use this identifier to cite or link to this item: http://dspace.bits-pilani.ac.in:8080/jspui/handle/123456789/17043
Title: Electron Spin Resonance Studies of Photo-oxidation by Metal Ions in Rigid Media at Low Temperatures: Part 4.—Survey of Photo-oxidation by the Uranyl Ion
Authors: Greatorex, D.
Hill, R. J.
Kemp, T. J.
Stone, T. J.
Keywords: Chemistry
Electron Spin Resonance
Photo-oxidation
Uranyl Ion
Low-Temperature Rigid Media
Journal of the Chemical Society : Faraday Transaction - I
Issue Date: 1972
Publisher: Journal of the Chemical Society : Faraday Transaction - I. The Chemical Society, London. 1972, 68 (11)
Abstract: The long-standing problem of the mechanism of photo-oxidation of organic and inorganic molecules by the UO2+2 ion has been explored in some detail by the matrix isolation method, the detection of trapped substrate-derived radicals being effected by electron spin resonance spectroscopy, mostly using organic matrices at 77 K. A variety of mechanisms is apparent even within a given homologous series, but the most common feature is abstraction of a hydrogen atom from a carbon atom adjacent to an activating group such as —CO—, —CN, —CO2H, —CHO, —OH, —CONH2, —CO2R or from a phosphorus atom; carbon-carbon cleavage is found (sometimes exclusively) with secondary and tertiary alcohols, ketones, some carboxylic acids and diethyl ether. These results are discussed in the light of recent steady-state studies involving comparison of quantum yield and fluorescence quenching data.
URI: http://dspace.bits-pilani.ac.in:8080/jspui/handle/123456789/17043
Appears in Collections:Journal Articles (before-1995)

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