title: Energy transfer switching in a bistable molecular machine.
abstract: [reaction: see text] A novel [2]rotaxane, containing pyrene and perylene bisimide as both stoppers and photoactive units, has been prepared. The shuttling of the protonated macrocycle switched the energy transfer (EN) from a pyrene moiety to a perylene moiety, which resulted in changes of fluorescence of the perylene moiety.
authors.affiliation: CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, and Graduate School of the Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing.
authors.forename: Yongjun
authors.initials: Y
authors.lastname: Li
authors.forename: Hao
authors.initials: H
authors.lastname: Li
authors.forename: Yuliang
authors.initials: Y
authors.lastname: Li
authors.forename: Huibiao
authors.initials: H
authors.lastname: Liu
authors.forename: Shu
authors.initials: S
authors.lastname: Wang
authors.forename: Xiaorong
authors.initials: X
authors.lastname: He
authors.forename: Ning
authors.initials: N
authors.lastname: Wang
authors.forename: Daoben
authors.initials: D
authors.lastname: Zhu