| Literature DB >> 29711270 |
Masumi Asakawa1, Peter R Ashton1, Vincenzo Balzani2, Alberto Credi2, Christoph Hamers1, Gunter Mattersteig1, Marco Montalti2, Andrew N Shipway1, Neil Spencer1, J Fraser Stoddart1, Malcolm S Tolley1, Margherita Venturi2, Andrew J P White3, David J Williams3.
Abstract
A mechanical switch in a [2]catenane, made up of a cyclobis(paraquat-p-phenylene) tetracation interlocked with a macrocyclic polyether containing a redox-active tetrathiafulvalene (TTF) unit and a 1,5-dioxynaphthalene ring system, can be thrown either chemically or electrochemically. The neutral TTF unit resides "inside" the tetracationic cyclophane in the reduced state and "alongside" it in the oxidized species (TTF+ / TTF2+ ). Switching between the reduced (I4+ ) and oxidized state (I5+ (I6+ )) is accompanied by a dramatic color change. © 1998 WILEY-VCH Verlag GmbH, Weinheim, Fed. Rep. of Germany.Entities:
Keywords: Catenanes; Charge transfer complexes; Molecular devices; Redox switching; Self-assembly; Supramolecular chemistry
Year: 1998 PMID： 29711270 DOI： 10.1002/(SICI)1521-3773(19980216)37:3<333::AID-ANIE333>3.0.CO;2-P
Source DB: PubMed Journal: Angew Chem Int Ed Engl ISSN： 1433-7851 Impact factor: 15.336