Sum frequency generation investigation of water at the surface of H2O/H2SO4 and H2O/Cs2SO4 binary systems

被引：48

作者：

Baldelli, S ^{[1
]}

Schnitzer, C

Shultz, MJ

Campbell, DJ

机构：

[1] Tufts Univ, Dept Chem, Medford, MA 02155 USA

[2] Coll Holy Cross, Dept Chem, Worcester, MA 01610 USA

来源：

CHEMICAL PHYSICS LETTERS | 1998年 / 287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(98)00161-4

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 vibrational structure of water at the air/solution interface of an ionic solution has been obtained for the first time. Using vibrational sum frequency generation it is determined that ions in solution have a large orientational effect on the structure of the surface water. Electrolytic solutions, ionic in nature, cause water to be oriented into a more regular hydrogen-bonded network through an electric double layer at the interface. In electrolytic solutions where molecular or associated H2SO4 or Cs2SO4 species dominate, the surface water molecules are bound into hydrate complexes. These effects are explained using hard soft acid base (HSAB) theory. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：143 / 147

页数：5

共 26 条

[1]

ADAMSON AW, 1997, PHYSICAL CHEM SURFAC

[2]

Akhumov E. I., 1974, ZH PR KHIM, V47, P1852

[3] Sum frequency generation investigation of glycerol/water surfaces [J].