ASSOCIATION OF CAFFEINE IN WATER AND IN AQUEOUS-SOLUTIONS OF SUCROSE

被引：59

作者：

LILLEY, TH ^{[1
]}

LINSDELL, H ^{[1
]}

MAESTRE, A ^{[1
]}

机构：

[1] UNIV SEVILLA,DEPT QUIM FIS,E-41012 SEVILLE,SPAIN

来源：

JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS | 1992年 / 88卷 / 19期

关键词：

D O I：

10.1039/ft9928802865

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 association of caffeine in water and in aqueous sucrose solutions at 25-degrees-C has been investigated by solubility, distribution, enthalpy of dilution and NMR chemical shift measurements. All the results are consistent with a model (the isodesmic model) in which the caffeine associates to form dimers, trimers etc and for which, the equilibrium constant, for each step, in any solvent mixture studied, is the same. Values are presented for thermodynamic quantities which represent the solution properties.

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页码：2865 / 2870

页数：6

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