Modulation of fluorescence properties of MMeAQ in micelles and cyclodextrins

被引：8
|
作者：
Burai, Tarak Nath [1 ]
Bag, Nirmalya [1 ]
Agarwal, Shipra [1 ]
Iyer, E. Siva Subramaniam [1 ]
Datta, Anindya [1 ]
机构：
[1] Indian Inst Technol, Dept Chem, Bombay 400076, Maharashtra, India
来源：
CHEMICAL PHYSICS LETTERS | 2010年 / 495卷 / 4-6期
关键词：
ALPHA-TERTHIOPHENE; EPICOCCONONE; DERIVATIVES; EMISSION;
D O I：
10.1016/j.cplett.2010.06.068
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 interactions of the N-methylquinoline-3-amine (MMeAQ) with three cyclodextrins and micelles have been investigated using fluorescence spectroscopic techniques. It is shown that cationic and neutral surfactants enhance the fluorescence quantum yield of the MMeAQ in water by breakup of aggregates of MMeAQ and incorporation into the micelles. However such enhancement is not observed in SDS micelle. The fluorescence enhancement of MMeAQ in beta-cyclodextrin host is rationalized in the light of the stoichiometry of the inclusion complexes. There is no such interaction is observed for alpha-CD and gamma-CD. Quantum chemical calculation has also been performed in order to support the experimental findings of cationic species. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：208 / 211
页数：4
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