Spectroscopic studies of inclusion complexes of 1-naphthol-4-sulfonate with β-cyclodextrin in aqueous solution

被引:16
作者
Al-Shihry, SS [1 ]
机构
[1] King Faisal Univ, Coll Sci, Dept Chem, Al Hufuf 31982, Saudi Arabia
关键词
fluorescence; inclusion complexes; beta-cyclodextrin; naphthol derivatives; Benesi-Hildebrand; NMR;
D O I
10.1016/j.saa.2004.09.006
中图分类号
O433 [光谱学];
学科分类号
0703 ; 070302 ;
摘要
The photophysical properties of 1-naphthol-4-sulfonate (1N4S) in some solvents and in aqueous beta-cyclodextrin solution have been investigated. The effect of P-cyclodextrin on the fluorescence quantum yield and on the proton transfer is examined. Fluorescence measurements show 1:1 inclusion of 1N4S in the beta-cyclodextrin cavity with an association constant of 108M(-1). NMR studies are used to study the inclusion phenomena and to provide information on the geometry of 1N4S inside the cavity of beta-cyelodextrin. (c) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码:2439 / 2443
页数:5
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