TIME-RESOLVED RESONANCE RAMAN-SPECTRA OF TRANS-STILBENE AND CIS-STILBENE IN THE LOWEST EXCITED TRIPLET-STATE

被引：18
|
作者：
LANGKILDE, FW
WILBRANDT, R
NEGRI, F
ORLANDI, G
机构：
[1] RISO NATL LAB,DEPT CHEM,DK-4000 ROSKILDE,DENMARK
[2] UNIV BOLOGNA,DIPARTIMENTO CHIM G CIAMICIAN,I-40126 BOLOGNA,ITALY
来源：
CHEMICAL PHYSICS LETTERS | 1990年 / 165卷 / 01期
关键词：
D O I：
10.1016/0009-2614(90)87013-H
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：
Time-resolved resonance Raman spectra are obtained of the lowest excited triplet state T1 produced from each of the trans and cis isomers of stilbene in methanol at room temperature, and from trans-stilbene in glycerol at 203 K. The room-temperature spectra are found to be identical for the two isomers. The spectra are compared with preliminary results of a quantum chemical force field calculation of frequencies of ag modes a planar T1 trans-stilbene. The T1 spectra are tentatively ascribed to a planar or near-planar trans geometry. Implications for the stilbene T1 potential energy surface are discussed. © 1990.
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页码：66 / 72
页数：7
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