IONIC PHOTODISSOCIATION OF POLYENES VIA A HIGHLY POLARIZED SINGLET EXCITED-STATE

被引:29
作者
REDDY, AM [1 ]
RAO, VJ [1 ]
机构
[1] INDIAN INST CHEM TECHNOL,DIV ORGAN 2,HYDERABAD 500007,INDIA
关键词
D O I
10.1021/jo00051a011
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
Several polyene acetates and polyene methyl ether were prepared. Upon direct excitation these polyenes undergo ionic photodissociation from their singlet excited states. Triplet-sensitization experiments on these polyenes revealed that the ionic photodissociation process is restricted to singlet excited states. The rationale put forward is that the polyene chromophore undergoes charge separation/polarization in the singlet excited state, which leads to ionic photodissociation.
引用
收藏
页码:6727 / 6731
页数:5
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