Complexation of Fluorenone and Xanthone to Cyclodextrins:  Comparison of Theoretical and Experimental Studies

Complexation of Fluorenone and Xanthone to Cyclodextrins:  Comparison of Theoretical and Experimental Studies

The structural aspects for the complexation of xanthone and fluorenone to α- as well as β-cyclodextrins (CDxs) were explored by combining absorption, fluorescence, and induced circular dichroism studies with theoretical calculations of the optimized structures for the ketone−CDx complexes and their...

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Veröffentlicht in:The journal of physical chemistry. A, Molecules, spectroscopy, kinetics, environment, & general theory Molecules, spectroscopy, kinetics, environment, & general theory, 1999-01, Vol.103 (1), p.137-146
Hauptverfasser: Murphy, R. S, Barros, T. C, Barnes, J, Mayer, B, Marconi, G, Bohne, C
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container_title The journal of physical chemistry. A, Molecules, spectroscopy, kinetics, environment, & general theory
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creator Murphy, R. S
Barros, T. C
Barnes, J
Mayer, B
Marconi, G
Bohne, C
description The structural aspects for the complexation of xanthone and fluorenone to α- as well as β-cyclodextrins (CDxs) were explored by combining absorption, fluorescence, and induced circular dichroism studies with theoretical calculations of the optimized structures for the ketone−CDx complexes and their predicted ICD spectra. Detailed information on the similarities and differences for the complexes of these ketones with CDxs was obtained. For both CDxs, the ketones are bound to the rim of the cavity, and deeper penetration is observed for the complexes with β-CDx. In addition, a 1:2 complex involving α-CDx was only observed in the case of fluorenone. Although the two ketones have similar structures, their molecular recognition properties and the resulting structures of the CDx complexes show distinct differences.
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title Complexation of Fluorenone and Xanthone to Cyclodextrins:  Comparison of Theoretical and Experimental Studies
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