INCLUSION OF AZULENE AND ALCOHOL BY BETA-CYCLODEXTRIN IN AQUEOUS-SOLUTION

被引：48

作者：

HAMAI, S ^{[1
]}

IKEDA, T ^{[1
]}

NAKAMURA, A ^{[1
]}

IKEDA, H ^{[1
]}

UENO, A ^{[1
]}

TODA, F ^{[1
]}

机构：

[1] TOKYO INST TECHNOL,FAC BIOSCI & BIOTECHNOL,DEPT BIOENGN,MIDORI KU,YOKOHAMA,KANAGAWA 227,JAPAN

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 1992年 / 114卷 / 15期

关键词：

D O I：

10.1021/ja00041a017

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Beta-Cyclodextrin (beta-CD) has been found to form a ternary inclusion complex with alcohol and azulene, with a stoichiometry of 2:2:1. By means of a fluorescence method, equilibrium constants for the formation of the ternary inclusion complex have been evaluated for alcohols from ethanol to 1-pentanol. Induced circular dichroism studies suggest that in the ternary inclusion complex azulene slightly extrudes from the beta-CD cavity compared with a 1:1 inclusion complex between beta-CD and azulene. From an analysis of a H-1-NMR spectrum for azulene in D2O containing both beta-CD and 1-propanol, 1-propanol incorporated into the beta-CD cavity is deduced to be in close proximity to H-2 and H-6 of azulene in the ternary inclusion complex.

引用

页码：6012 / 6016

页数：5

共 29 条

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