ENTHALPIC AND ENTROPIC CONTRIBUTIONS TO SUBSTITUENT EFFECTS ON THE IONIZATION OF META-CHLOROBENZOIC AND PARA-CHLOROBENZOIC ACIDS IN WATER-DIMETHYLSULFOXIDE MIXTURES AT 25-DEGREES-C

被引：14

作者：

RODANTE, F

机构：

[1] Istituto di Chimica della Facoltà di Ingegneria, Università di Roma, Rome

来源：

THERMOCHIMICA ACTA | 1979年 / 31卷 / 02期

关键词：

D O I：

10.1016/0040-6031(79)85010-8

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Separate enthalpic and entropic contributions to substituent effects on the dissociation of m- and p-chlorobenzoic acids in water-dimethylsulfoxide mixtures ranging from 0 to 0.8 mole fraction DMSO are presented. The effect of the medium on the substituent and reaction constants for the ionization processes is explained in terms of solute-solvent interactions and related structure breaking. © 1979.

引用

页码：221 / 226

页数：6

共 9 条

[1]

Fujita T., 1976, PROG PHYS ORG CHEM, V12, P49

[2]

Hammett L. P., 1940, PHYS ORGANIC CHEM RE

[3] FIELD AND RESONANCE COMPONENTS OF SUBSTITUENT EFFECTS IN RELATION TO HAMMETT EQUATION [J].