PROTON-TRANSFER REACTION-RATES AS A PROBE OF SIZE-DEPENDENT PROPERTIES OF LARGE WATER CLUSTERS

被引：41

作者：

KNOCHENMUSS, R

HOLTOM, GR

RAY, D

机构：

[1] Molecular Science Research Center, Pacific Northwest Laboratory, Richland, WA 99352, P.O. Box 999

来源：

CHEMICAL PHYSICS LETTERS | 1993年 / 215卷 / 1-3期

关键词：

D O I：

10.1016/0009-2614(93)89286-Q

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：

Solvent-controlled excited state intermolecular proton transfer kinetics in 1-naphthol . (H2O)n (n less-than-or-equal-to 800), clusters were observed by picosecond time-resolved fluorescence in a molecular beam. Fast ( < 60 ps) and slow (0.5-1.5 ns) components of the naphtholate product fluorescence appearance were observed. The slower component decreased in rate with increasing cluster size; the time scale is much slower than for relaxation in bulk liquid water. The occurrence of the proton transfer reaction indicates liquid-like fluxionality of the water clusters in spite of their low temperature,

引用

页码：188 / 192

页数：5

共 36 条

[21] SIMULATIONS OF SOLVATION DYNAMICS IN SIMPLE POLAR-SOLVENTS [J].