Diffuse reflectance laser photolytic studies of pyrene included in zeolites - Formation of pyrene anion radicals via excited-state electron transfer between guest molecules

被引：32
作者：
Hashimoto, S
机构：
[1] Chemistry Department, Gunma College of Technology, Maebashi, Gunma 371
来源：
CHEMICAL PHYSICS LETTERS | 1996年 / 252卷 / 3-4期
关键词：
D O I：
10.1016/0009-2614(96)00146-7
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 formation of pyrene radical anions was observed on photo-excitation of pyrene as a result of electron transfer between pyrene molecules in the excited state and those in the ground state. This conclusion is based on the observation of concentration-dependent quenching of pyrene monomer fluorescence accompanied by a concomitant rise in the transient absorption bands of pyrene radical cation and pyrene radical anion. The present observation is significantly different in mechanism from a previous investigation in which the radical anion was found to be produced by the photo-electron transfer from host alkali metal-exchanged zeolites to excited pyrene.
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页码：236 / 242
页数：7
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