Femtosecond dynamics of solvation at the air/water interface

被引：61

作者：

Zimdars, D

Dadap, JI

Eisenthal, KB ^{[1
]}

Heinz, TF

机构：

[1] Columbia Univ, Dept Chem, New York, NY 10027 USA

[2] Columbia Univ, Dept Phys, New York, NY 10027 USA

来源：

CHEMICAL PHYSICS LETTERS | 1999年 / 301卷 / 1-2期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/S0009-2614(99)00017-2

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：

The electronic excited-state solvation dynamics of coumarin 314 (C314) adsorbed at the air/water interface was investigated by femtosecond time-resolved surface second-harmonic generation (TRSHG). This Letter presents the first use of TRSHG to measure solvation dynamics and presents the theoretical basis for monitoring electronic excited-state solvation with TRSHG. The interfacial electronic excited solvation time of C314 was measured to be 790 +/- 30 fs. This is close to bulk results and is in agreement with simple dielectric continuum models of solvation and the predictions of molecular dynamics simulations. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：112 / 120

页数：9

共 34 条

[1] PICOSECOND PUMP PROBE EXPERIMENTS ON SURFACE-ADSORBED DYES - GROUND-STATE RECOVERY OF RHODAMINE 640 ON ZNO AND FUSED-SILICA [J].