SPECTROSCOPIC STUDIES OF THE SINGLET AND TRIPLET EXCITED-STATES OF SOME SUBSTITUTED BIPHENYLENES

被引：15
|
作者：
SUAREZ, M [1 ]
DEVADOSS, C [1 ]
SCHUSTER, GB [1 ]
机构：
[1] UNIV ILLINOIS,DEPT CHEM,ROGER ADAMS LAB,URBANA,IL 61801
来源：
JOURNAL OF PHYSICAL CHEMISTRY | 1993年 / 97卷 / 37期
关键词：
D O I：
10.1021/j100139a008
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 steady-state and time-resolved spectroscopy of a series of substituted biphenylenes was probed to assess their possible application as photoreceptors in a liquid crystal-based optical switch. Their singlet-singlet and triplet-triplet absorption spectra were recorded, and the rates of their radiative and nonradiative relaxation processes were measured. In no case could a triplet biphenylene be detected following direct irradiation even when the substituent is expected to enhance intersystem crossing. Consequently, these compounds will not be suitable for application as photoreceptors that require triplet-state formation.
引用
收藏
页码：9299 / 9303
页数：5
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