Raman spectra and 17O NMR study effects of CaCl2 and MgCl2 on water structure

被引：54

作者：

Li, RH ^{[1
]}

Jiang, ZP ^{[1
]}

Shi, SQ ^{[1
]}

Yang, HW ^{[1
]}

机构：

[1] Tsing Hua Univ, Dept Environm Sci & Engn, Beijing 100084, Peoples R China

来源：

JOURNAL OF MOLECULAR STRUCTURE | 2003年 / 645卷 / 01期

基金：

中国国家自然科学基金;

关键词：

hydrogen bonding; water structure; Raman spectra; O-17; NMR; CaCl2 and MgCl2;

D O I：

10.1016/S0022-2860(02)00528-8

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：

With various concentrations of CaCl2 and MgCl2 aqueous solution below 1.0 mol/l, Raman spectra of water in the OH stretch region of 2500-4000 cm(-1) and O-17 NMR chemical shift of water are measured and the Raman spectra are deconvoluted. Both Raman spectra and O-17 NMR of water show that the effect of Ca2+ on water structure is stronger than that of Mg2+. CaCl2 and MgCl2 destroy four hydrogen bonded water structure, but promote median water cluster size. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：69 / 75

页数：7

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