Structure of the S1 state of diphenylacetylene as studied by time-resolved CARS and infrared spectroscopy

被引：7
|
作者：
Nomoto, T
Ishibashi, T
Okamoto, H
Hamaguchi, H
机构：
[1] Univ Tokyo, Sch Sci, Dept Chem, Bunkyo Ku, Tokyo 1130033, Japan
[2] Hiroshima Univ, Grad Sch Sci, Dept Chem, Higashihiroshima, Hiroshima 7398526, Japan
[3] Inst Mol Sci, Okazaki, Aichi 4448585, Japan
来源：
JOURNAL OF MOLECULAR STRUCTURE | 2005年 / 735卷
关键词：
picosecond CARS spectroscopy; picosecond infrared spectroscopy; diphenylacetylene; excited-state structure;
D O I：
10.1016/j.molstruc.2004.11.023
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：
Picosecond transient CARS and picosecond transient infrared absorption spectra of three isotope-substituted diphenylacetylenes (DPA, DPA-C-13, and DPA-d(5)) in solution have been recorded. The recorded CARS and infrared spectra of the S-1 state have been interpreted in terms of a three-coordinate normal coordinate analysis. Existence of a center of symmetry has been indicated from the mutual exclusion relationship established for the CARS and infrared spectra, strongly supporting a trans-bent structure of the S-1 state. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码：197 / 202
页数：6
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