title: Strong guest binding by cyclodextrin hosts in competing nonpolar solvents and the unique crystalline structure.
abstract: 6-O-Modified β-cyclodextrins, such as heptakis(6-O-triisopropylsilyl)-β-cyclodextrin (TIPS-β-CD) and heptakis(6-O-tert-butyldimethylsilyl)-β-cyclodextrin (TBDMS-β-CD), formed 2:1 inclusion complexes with pyrene in benzene and cyclohexane with high association constants. The X-ray crystalline structure of the TIPS-β-CD-pyrene complex obtained from the benzene solution showed that one pyrene molecule was incorporated in the form of a sandwich-type complex with two benzene molecules within the cavity of the dimer formed by two TIPS-β-CD molecules.
authors.affiliation: Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka 565-0871, Japan.
authors.forename: Toshiyuki
authors.initials: T
authors.lastname: Kida
authors.forename: Takuya
authors.initials: T
authors.lastname: Iwamoto
authors.forename: Yoshinori
authors.initials: Y
authors.lastname: Fujino
authors.forename: Norimitsu
authors.initials: N
authors.lastname: Tohnai
authors.forename: Mikiji
authors.initials: M
authors.lastname: Miyata
authors.forename: Mitsuru
authors.initials: M
authors.lastname: Akashi