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Magnetic field effect on the dynamic behavior of a radical pair involving an Sn-centered radical

✍ Scribed by Masanobu Wakasa; Hisaharu Hayashi

Publisher
Elsevier Science
Year
1994
Tongue
English
Weight
433 KB
Volume
229
Category
Article
ISSN
0009-2614

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✦ Synopsis

The photoreduction of xanthone with triethyltinhydride in a sodium dodecylsulfate solution was investigated with the aid of a time-resolved ESR and a nanosecond laser flash photolysis. Upon irradiation of xanthone with triethyltinhydride, the hydrogen abstraction occurred and the ketyl-type and cyclohexadienyl-type radicals were observed by CIDEP spectra. The escaped xanthone ketyl radical increased with increasing magnetic field strength up to 1.29 T. The observed magnetic filed effects can be interpreted by a combination of the hyperline coupling and the relaxation mechanisms in the case of a triplet radical pair.

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