SOLUTE-SOLVENT AND SOLVENT-SOLVENT INTERACTIONS IN BINARY SOLVENT MIXTURES .1. A COMPARISON OF SEVERAL PREFERENTIAL SOLVATION MODELS FOR DESCRIBING E(T)-(30) POLARITY OF DIPOLAR HYDROGEN-BOND ACCEPTOR-COSOLVENT MIXTURES

被引：178

作者：

ROSES, M

RAFOLS, C

ORTEGA, J

BOSCH, E

机构：

来源：

JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 2 | 1995年 / 08期

关键词：

D O I：

10.1039/p29950001607

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

The influence of solute-solvent and solvent-solvent interactions on the preferential solvation of solvatochromic indicators in binary solvent mixtures of dipolar hydrogen bond accepters has been studied. Several equations based on solvent exchange models that relate the transition energy of the Dimroth-Reichardt E(T) (30) indicator with the solvent composition are derived and compared. The models tested assume that the two solvents mixed interact to form a common structure with an E(T) (30) value not always intermediate between those of the solvents mixed. The solvatochromic indicator can be preferentially solvated by any of the solvents mixed or by the mixed solvent obtained. The parameters obtained explain the strong synergism observed for some of the mixtures with strong hydrogen bond donors (alcohols and chloroform).

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页码：1607 / 1615

页数：9

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