title: A fast-moving [2]rotaxane whose stoppers are remote from the copper complex core.
abstract: [reaction: see text] A new copper-complexed rotaxane is described. It consists of a two-coordination site ring threaded by a sterically non-hindering 2,2'-bipyridine derivative. An electrochemical signal (oxidation or reduction of the copper center, Cu(I) or Cu(II)) induces rearrangement of the system. By using long and flexible linkers between the stoppers and the central complex, ligand exchange is fast, which leads to short response times (on the millisecond time scale and even below).
authors.affiliation: Laboratoire de Chimie Organo-Minérale, Université Louis Pasteur/U.M.R. du CNRS 7513, Institut Le Bel, 4, rue Blaise Pascal, 67070 Strasbourg-Cedex, France.
authors.forename: Ulla
authors.initials: U
authors.lastname: Létinois-Halbes
authors.forename: David
authors.initials: D
authors.lastname: Hanss
authors.forename: John M
authors.initials: JM
authors.lastname: Beierle
authors.forename: Jean-Paul
authors.initials: JP
authors.lastname: Collin
authors.forename: Jean-Pierre
authors.initials: JP
authors.lastname: Sauvage