Three-component complexes of cyclodextrins. Exciplex formation in cyclodextrin cavity |
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| Authors: | Koji Kano Shizunobu Hashimoto Akio Imai Teiichiro Ogawa |
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| Affiliation: | (1) Department of Applied Chemistry, Faculty of Engineering, Doshisha University, Kamikyo-ku, 602 Kyoto, Japan;(2) Department of Molecular Science and Technology, Graduate School of Engineering Sciences, Kyushu University, 816 Kasuga, Fukuoka, Japan |
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| Abstract: | The fluorescence quenching of naphthalene, 1-methylnaphthalene, and acenaphthene by trimethylamine (TMA) was studied in aqueous  -cyclodextrin (-CD) solutions to know the structural requirements for guest molecules to form three-component complexes. The apparent rates for the fluorescence quenching of the naphthalene derivatives by TMA markedly increased in the presence of -CD. The fluorescence quenching of 1-methylnaphthalene and acenaphthene by TMA was accelerated by -CD more efficently than that of naphthalene. These results suggest the structures of the three-component complexes as the arene-capped -CD including TMA in its cavity. |
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