Association of C5-C9 normal alkanes with cyclodextrins in aqueous medium.
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概要
- 論文の詳細を見る
The complex formation of cyclodextrin (CyD, host) with C<SUB>5</SUB> to C<SUB>9</SUB> normal alkanes (guests) has been studied in aqueous medium at 25°C by making use of the volatilization rate of alkane molecules from aqueous into gaseous phase. In the excess of the host, β- and γ-CyDs form 1:1 complexes, while α-CyD forms 1:1 and 2:1 (host: guest) complexes. With an increase in the chain length of alkane, association constants for three CyDs increased; in the case of α-CyD, the 1:1 association constant for C<SUB>9</SUB> was identical to that for C<SUB>8</SUB>, while the 2:1 association constant continued to increase. The cavity size of CyD, the alkane chain length, and hydrophobicity and surface area of alkane molecules were taken into account to discuss the host-guest inclusion mechanism.
- 公益社団法人 日本化学会の論文
著者
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Deguchi Toshio
Department Of Chemistry Faculty Of Science Kumamoto University
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Sanemasa Isao
Department Of Chemistry Faculty Of Science Kumamoto University
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Osajima Tomonori
Department of Chemistry, Faculty of Science, Kumamoto University
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