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Electron spin resonance studies of chromanoxyl radicals derived from tocopherols

โœ Scribed by Kazuo Mukai; Noriko Tsuzuki; Setsuhiro Ouchi; Kenji Fukuzawa

Publisher
Elsevier Science
Year
1982
Tongue
English
Weight
395 KB
Volume
30
Category
Article
ISSN
0009-3084

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โœฆ Synopsis

Electron Spin resonance measurements were performed for the chromanoxyl radicals obtained from tx-, ~-, ~,-, /i-tocopherol, tocol and their model compounds by oxidizing the phenol precursors with PbO2 in toluene. The proton hyperfine coupling constants were determined, and the 'experimental' spin densities were evaluated from the h, yperfine coupling constants. From the results, the methyl-substitution effects on the unpaired spin distribution and molecular structure of the chromanoxyl radicals have been studied.

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