title: Dual-mode operation of a bistable [1]rotaxane with a fluorescence signal.
abstract: We report the operation of a ferrocene-based bistable [1]rotaxane that can work in two parallel platforms. In an "active" signal mode, the relative mechanical movement of its ring and thread in response to external acid-base-stimuli can result in a remarkable fluorescence signal output observed by the naked eye, whereas no obvious fluorescence change occurred in a "silent" signal mode after oxidation. Its fluorescence responses to the different combinations of DBU and/or Fe(ClO4)3 corresponds to an INHIBIT logic gate.
authors.affiliation: Key Laboratory for Advanced Materials and Institute of Fine Chemicals, East China University of Science & Technology , Shanghai 200237, P. R. China.
authors.forename: Hong
authors.initials: H
authors.lastname: Li
authors.forename: Ji-Na
authors.initials: JN
authors.lastname: Zhang
authors.forename: Wei
authors.initials: W
authors.lastname: Zhou
authors.forename: Hui
authors.initials: H
authors.lastname: Zhang
authors.forename: Qiong
authors.initials: Q
authors.lastname: Zhang
authors.forename: Da-Hui
authors.initials: DH
authors.lastname: Qu
authors.forename: He
authors.initials: H
authors.lastname: Tian