MAGNETIC-FIELD EFFECT ON THE DYNAMIC BEHAVIOR OF A RADICAL PAIR INVOLVING AN SN-CENTERED RADICAL

被引：7
|
作者：
WAKASA, M
HAYASHI, H
机构：
[1] Molecular Photochemistry Laboratory, The Institute of Physical and Chemical Research (RIKEN), Wako, Saitama
来源：
CHEMICAL PHYSICS LETTERS | 1994年 / 229卷 / 1-2期
关键词：
D O I：
10.1016/0009-2614(94)01014-5
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
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 hyperfine coupling and the relaxation mechanisms in the case of a triplet radical pair.
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页码：122 / 126
页数：5
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