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.

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页码：197 / 202

页数：6

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