SPECTRAL CHARACTERIZATION OF BETA-CYCLODEXTRIN - TRITON X-100 COMPLEXES

被引：79

作者：

SMITH, VK ^{[1
]}

NDOU, TT ^{[1
]}

DELAPENA, AM ^{[1
]}

WARNER, IM ^{[1
]}

机构：

[1] EMORY UNIV,DEPT CHEM,ATLANTA,GA 30322

来源：

JOURNAL OF INCLUSION PHENOMENA AND MOLECULAR RECOGNITION IN CHEMISTRY | 1991年 / 10卷 / 04期

关键词：

BETA-CYCLODEXTRIN; TRITON X-100; CYCLODEXTRIN INCLUSION; FLUORESCENCE SPECTROSCOPY; NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY;

D O I：

10.1007/BF01061077

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The spectral characteristics of the surfactant, Triton X-100, in the absence and presence of beta-cyclodextrin have been examined. The fluorescence of Triton X-100 is concentration dependent and is markedly enhanced in the presence of beta-cyclodextrin. Analysis of the variations in the excitation-emission profiles of the surfactant with concentration suggests excimer emission at concentrations above the critical micelle concentration (CMC). Nuclear magnetic resonance (NMR) spectroscopy suggests that the phenyl group is included inside the CD cavity while a portion of the ethylene oxide chain extends outside the cavity. Benesi-Hildebrand type equations were derived to determine the stoichiometry and to estimate the formation constant of the CD:S(f) complex.

引用

页码：471 / 484

页数：14

共 29 条

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