title: Thermoresponsive shuttling of rotaxane containing trichloroacetate ion.
abstract: A thermoresponsive rotaxane shuttling system was developed with a trichloroacetate counteranion of an ammonium/crown ether-type rotaxane. Chemoselective thermal decomposition of the ammonium trichloroacetate moiety on the rotaxane yielded the corresponding nonionic rotaxane accompanied by a positional change of the crown ether on the axle. The rotaxane skeleton facilitated effective dissociation of the acid, markedly lowering the thermal decomposition temperature.
authors.affiliation: Department of Organic and Polymeric Materials, Tokyo Institute of Technology, 2-12-1 (H-126), Ookayama, Meguro, Tokyo 152-8552, Japan.
authors.forename: Yoko
authors.initials: Y
authors.lastname: Abe
authors.forename: Hisashi
authors.initials: H
authors.lastname: Okamura
authors.forename: Kazuko
authors.initials: K
authors.lastname: Nakazono
authors.forename: Yasuhito
authors.initials: Y
authors.lastname: Koyama
authors.forename: Satoshi
authors.initials: S
authors.lastname: Uchida
authors.forename: Toshikazu
authors.initials: T
authors.lastname: Takata