Accession Number : AD0692455

Title :   TEMPERATURE DEPENDENCE OF THE ELECTRON SPIN RESONANCE SPECTRUM OF THE CH2CO2 (-) RADICAL FORMED IN X-IRRADIATED ZINC ACETATE DIHYDRATE.

Descriptive Note : Master's thesis,

Corporate Author : NAVAL POSTGRADUATE SCHOOL MONTEREY CALIF

Personal Author(s) : Hunt,John Woodrow

Report Date : JUN 1969

Pagination or Media Count : 134

Abstract : A decrease of one to six gauss (depending on magnetic field orientation) in the coupling constants of the CH2CO2(-) radical formed in X-irradiated zinc acetate dihydrate has been observed over a temperature range of about -60C to +30C. Calculations of dipolar and Fermi contact interaction based on a model of internal rotation of the methylene group about the C-C bond have shown a small coupling constant decrease on the order of 0.19 gauss over a temperature range of -150C to +90C. The major effect has been shown to be due to a spin relaxation mechanism. The effect was calculated using Monte Carlo techniques, the results of which were confirmed by experimental data. (Author)

Descriptors :   (*ACETATES, *ELECTRON PARAMAGNETIC RESONANCE), (*RADIATION CHEMISTRY, ELECTRON PARAMAGNETIC RESONANCE), X RAYS, FREE RADICALS, THESES

Subject Categories : Atomic and Molecular Physics and Spectroscopy

Distribution Statement : APPROVED FOR PUBLIC RELEASE