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The detection of thiyl radicals by ESR spectroscopy

✍ Scribed by Deanna Nelson; Martyn C.R. Symons

Publisher: Elsevier Science
Year: 1975
Tongue: English
Weight: 121 KB
Volume: 36
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(75)80250-8

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✦ Synopsis

Thiyl radicals (RS), formed by radiolysis of rigid solutions of a wide range of thiols at 77 K, are cha:acterised by parallel fearurcs with high g-values which are markedly solvent dependent. However, in methanol at 77 Kg,, = 2.158 in all cases and this can be taken as dianostic of RS radicals. Also in methanol, RaS molecules undergo ready dissociative electron capture to give R-+ RS-.

It is now certain that radical species Wiih p-vaiues dieted [3] that RS* radicals should have g-values deterin the regions of 2.06,2. 025 and 2.CO (species A) Fre-mined largely by the medium, with .$= (z being the carquently detected during the radiolysis or photolysis of bon-sulphur bond direction) greater than the free-spin

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