A volumetric study of molecular inclusion by α-cyclodextrin

被引：10

作者：

Isaacs, NS

Young, DJ ^{[1
]}

机构：

[1] Griffith Univ, Sch Sci, Nathan, Qld 4111, Australia

[2] Univ Reading, Dept Chem, Reading, Berks, England

来源：

TETRAHEDRON LETTERS | 1999年 / 40卷 / 20期

基金：

澳大利亚研究理事会;

关键词：

cyclodextrins; inclusion;

D O I：

10.1016/S0040-4039(99)00619-X

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

The reaction volume (Delta (V) over bar(c-->0)) associated with inclusion of 3-nitrophenol by alpha-cyclodextrin was determined by densitometry to be -9 cm(3) mol(-1) while the corresponding value for encapsulation of methyl orange by two molecules of alpha-cyclodextrin is +27 cm(3) mol(-1). These volume changes can be interpreted in terms of displacement of solvent from the cavity of alpha-cyclodextrin and/or changes in solvation of the "guest" molecule. (C) 1999 Published by Elsevier Science Ltd. All rights reserved.

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收藏

页码：3953 / 3956

页数：4

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