Vibrational relaxation and spectral evolution following ultrafast OH stretch excitation of water

被引：87

作者：

Pakoulev, A ^{[1
]}

Wang, ZH ^{[1
]}

Dlott, DD ^{[1
]}

机构：

[1] Univ Illinois, Sch Chem Sci, Urbana, IL 61801 USA

来源：

CHEMICAL PHYSICS LETTERS | 2003年 / 371卷 / 5-6期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/S0009-2614(03)00314-2

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：

Ultrafast anti-Stokes Raman measurements of OH stretching excitations (3000-3600 cm(-1)) in water show an similar to 0.4 ps spectral evolution from the red to the blue that is similar to what is seen in the Raman spectrum of water heated to 90degreesC. The lifetime of OH stretching excitations T-1 = 0.7 ps. A small portion of the spectrum on the blue edge of the band decays more slowly with T-1 = 1.1 ps. A previous measurement of T-1 approximate to 0.3 ps for water [J. Chem. Phys. 117 (2002) 1708] is reinterpreted shown to consistent with the present work. (C) 2003 Elsevier Science B.V. All rights reserved.

引用

页码：594 / 600

页数：7

共 36 条

[1] A combined instantaneous normal mode and time correlation function description of the infrared vibrational spectrum of ambient water [J].