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Yoshimi Sueishi, Tatsuhiro Ide

Inclusion Complexation of Methyl Orange with β-Cyclodextrin in a Room-Temperature Ionic Liquid

The inclusion complexation of Methyl Orange (MO) with β-cyclodextrin (β-CD) was studied spectrophotometrically in 1-butyl-3-methylimidazolium tetrafluoroborate ([bmim]BF₄) which is a typical room-temperature ionic liquid. It was found that MO forms a 1:2 inclusion complex with β-CD in [bmim]BF₄. A large association constant was obtained, suggesting a high degree of stability of the inclusion complex between MO and β-CD in [bmim]BF₄. Based on the results, the inclusion behavior of β-CD in the ionic liquid was discussed.

Zeitschrift für Physikalische Chemie, Oldenbourg Wissenschaftsverlag

Print ISSN: 0942-9352
Volume: 218, 07/2004
Pages: 829 - 835

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