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DETERMINATION OF DECAY CONSTANTS WITH A SAMPLING FLASH APPARATUS - TRIPLET-STATE LIFETIMES OF ANTHRACENE AND PYRENE IN FLUID SOLUTIONS

被引：48
作者：
GRELLMANN, KH
SCHOLZ, HG
机构：
[1] Max-Planck-Institut für biophysikalische Chemie, Abteilung Spectroskopie
来源：
CHEMICAL PHYSICS LETTERS | 1979年 / 62卷 / 01期
关键词：
D O I：
10.1016/0009-2614(79)80414-5
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：
A sampling flash apparatus for recording weak transient absorptions in the microsecond range is described. Two methods for the evaluation of first- and second-order rate constants from mixed-order plots are briefly discussed. The concentration dependence of the lifetime of anthracene in its excited triplet state has been investigated in cyclohexane at room temperature. It is assumed that the observed decrease in triplet lifetime with increasing anthracene concentration is due to impurity quenching and not due to triplet excimer formation. © 1979.
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页码：64 / 71
页数：8
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