Relationships among solvent softness scales

被引：15

作者：

Chen, T ^{[1
]}

Hefter, G

Marcus, Y

机构：

[1] Murdoch Univ, Div Sci, Murdoch, WA 6150, Australia

[2] Hebrew Univ Jerusalem, Dept Inorgan & Analyt Chem, IL-91904 Jerusalem, Israel

来源：

JOURNAL OF SOLUTION CHEMISTRY | 2000年 / 29卷 / 03期

关键词：

solvent softness; softness parameters; Raman band of HgBr2; IR band of ICN; IR band of phenol;

D O I：

10.1023/A:1005114615767

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：

Quantitative measures of solvent softness, in the sense of Pearson's hard-soft acid-base (HSAB) concept, are considered using three scales: the mu scale, based on the Gibbs energies of transfer of selected ions, the Raman wavenumber shift of HgBr2 (the D-s scale), and the difference between the IR wavenumber shift of the C-I stretch of ICN and the O-H stretch of phenol. Raman and IR band shifts have been measured for a number of solvents for the neat ones(Raman) and in CCl4 solution (IR). Good linear correlations between the three scales are obtained that permit the prediction of the softness of a wide range of solvents. A number of anomalies encountered are discussed.

引用

页码：201 / 216

页数：16

共 24 条

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