Redistribution and relaxation of vibrational excitation of CH-stretching modes in 1,1-dichloroethylene and 1,1,1-trichloroethane

被引：25

作者：

Hartl, I ^{[1
]}

Zinth, W ^{[1
]}

机构：

[1] Univ Munich, Inst Med Opt, D-80538 Munich, Germany

来源：

JOURNAL OF PHYSICAL CHEMISTRY A | 2000年 / 104卷 / 18期

关键词：

D O I：

10.1021/jp993033d

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：

Anti-Stokes Raman scattering after resonant infrared excitation with femtosecond light pulses was used to monitor the vibrational excitation of the CH-stretching modes of liquid CH2CCl2 and CH3CCl3, Selective excitation and probing allowed determination of the various time-constants for the redistribution between the CH-stretching modes and their relaxation. For the symmetric CH-stretching mode of CH2CCl2 relaxation times of 3.5 and 9.5 ps are determined for the transfer to overtones and to the asymmetric CH-stretching mode, respectively. For CH3CCl3 these time constants are 5.0 and 4.7 ps.

引用

页码：4218 / 4222

页数：5

共 19 条

[1] NONLINEAR OPTICAL PULSE-PROPAGATION IN MOLECULAR MEDIA [J].