Ultrafast dynamics of photoexcited trans-1,3,5-hexatriene in solution by femtosecond transient absorption spectroscopy

被引：34

作者：

Ohta, K

Naitoh, Y

Saitow, K

Tominaga, K

Hirota, N

Yoshihara, K

机构：

[1] INST MOLEC SCI,OKAZAKI,AICHI 444,JAPAN

[2] GRAD UNIV ADV STUDIES,OKAZAKI,AICHI 444,JAPAN

来源：

CHEMICAL PHYSICS LETTERS | 1996年 / 256卷 / 06期

关键词：

D O I：

10.1016/0009-2614(96)00503-9

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：

We have investigated the ultrafast dynamics of trans-1,3,5-hexatriene in cyclohexane and acetonitrile solutions following photoexcitation to the 1 B-1(u) state. The transient absorption in the visible region consists of an instantaneous rise (< 150 fs) and decay in less than 500 fs, whose time constant depends on the probe wavelength. The bleach recovery at 268 nm indicates that the vibrational relaxation in the ground state occurs in 15-20 ps, followed by a subnanosecond relaxation.

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页码：629 / 634

页数：6

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