FLUORESCENCE QUENCHING STUDIES OF CYCLODEXTRIN COMPLEXES OF PYRENE AND NAPHTHALENE IN THE PRESENCE OF ALCOHOLS

被引:66
作者
NELSON, G [1 ]
WARNER, IM [1 ]
机构
[1] EMORY UNIV,DEPT CHEM,ATLANTA,GA 30322
关键词
D O I
10.1021/j100365a017
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
Fluorescence quenching of naphthalene- and pyrene-cyclodextrin complexes using iodide ion is examined. A model describing the fluorescence intensity quenching of naphthalene:β-cyclodextrin complexes is proposed and evaluated. This model assumes that cyclodextrin-complexed naphthalene is essentially unquenched by iodide ion. This was found to be true for naphthalene:cyclodextrin complexes in the presence of benzyl alcohol. Pyrene fluorescence lifetime data are presented which support the conclusion that cyclodextrin inclusion complexes in the presence of alcohols are quenched to a significantly lesser extent than in the absence of alcohols. © 1990 American Chemical Society.
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页码:576 / 581
页数:6
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