NATURAL RADIATIVE LIFETIMES OF ANTHRACENE-DERIVATIVES AND THEIR DEPENDENCE ON REFRACTIVE-INDEX

被引:43
作者
HIRAYAMA, S
IUCHI, Y
TANAKA, F
SHOBATAKE, K
机构
[1] UNIV OSAKA PREFECTURE,COLL INTEGRATED ARTS & SCI,SAKAI,OSAKA 591,JAPAN
[2] INST MOLEC SCI,OKAZAKI,AICHI 444,JAPAN
关键词
D O I
10.1016/0301-0104(90)80106-8
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
Fluorescence lifetimes of the electronic origins of S1 are measured in supersonic free jets for nine anthracene derivatives. For most of the meso di-substituted derivatives, these lifetimes are virtually equal to the natural radiative lifetimes in vacuum and they are satisfactorily related to the radiative lifetimes determined in n-hexane through a factor of n2 (n is the refractive index). This unambiguous relationship found for the anthracene derivatives will help to bring a long-standing debate on the refractive-index dependence of the radiative lifetime to an end. It will also provide a basis for the discussion of the dependence of the radiative lifetime on single vibronic levels (SVL). © 1990.
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收藏
页码:401 / 406
页数:6
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