Water in the vicinity of solvated ions: modified dynamical and structural water properties resolved by sub-picosecond IR-spectroscopy

被引：13

作者：

Laenen, R ^{[1
]}

Thaller, A ^{[1
]}

机构：

[1] Tech Univ Munich, Dept Phys E11, DE-85748 Garching, Germany

来源：

CHEMICAL PHYSICS LETTERS | 2001年 / 349卷 / 5-6期

关键词：

D O I：

10.1016/S0009-2614(01)01244-1

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：

Sub-picosecond IR-spectroscopy is applied to aqueous salt solutions xith low concentrated HDO acting as a local probe for the H-bonds in the D2O sample. We find a notable lengthening of the OH-lifetime by the presence of the dissolved salt ions by a factor of 2 (LiCl) up to 2.7 (NaCl). Simultaneously the average reorientation of the OH-dipoles slows down to 12 ps (273 K) and 4 ps (343 K. NaCl). (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：442 / 450

页数：9

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