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Structural Evidence of Mechanical Shuttling in Condensed Monolayers of Bistable Rotaxane Molecules
Author(s) -
Nørgaard Kasper,
Laursen Bo W.,
Nygaard Sune,
Kjaer Kristian,
Tseng HsianRong,
Flood Amar H.,
Stoddart J. Fraser,
Bjørnholm Thomas
Publication year - 2005
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200501538
Subject(s) - bistability , monolayer , rotaxane , dumbbell , scattering , tracking (education) , nanometre , molecule , nanotechnology , chemical physics , chemistry , crystallography , materials science , physics , optoelectronics , optics , supramolecular chemistry , organic chemistry , psychology , medicine , pedagogy , physical therapy
On the move! Upon oxidation in situ, a positively charged ring travels a few nanometers along the dumbbell‐shaped component of a monolayer of soaplike, bistable [2]rotaxanes on water (see picture). This motion was probed by surface‐sensitive X‐ray scattering and establishes that bistable rotaxanes retain their switching capabilities even in condensed monolayer phases.