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Electrochemically Induced Molecular Motions in Pseudorotaxanes: A Case of Dual‐Mode (Oxidative and Reductive) Dethreading
Author(s) -
Asakawa Masumi,
Ashton Peter R.,
Balzani Vincenzo,
Credi Alberto,
Mattersteig Gunter,
Matthews Owen A.,
Montalti Marco,
Spencer Neil,
Stoddart J. Fraser,
Venturi Margherita
Publication year - 1997
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.19970031214
Subject(s) - chemistry , tetrathiafulvalene , cyclophane , electrochemistry , acetonitrile , electron acceptor , dual mode , electron donor , electron , photochemistry , reduction (mathematics) , molecule , organic chemistry , electrode , physics , geometry , mathematics , quantum mechanics , engineering , aerospace engineering , catalysis
The electrochemical and spectroscopic properties of a pseudorotaxane formed in acetonitrile solution by self‐assembly of a wire‐type electron donor based on the tetrathiafulvalene unit and the cyclobis(paraquat‐ p ‐phenylene) tetracationic electron acceptor have been investigated. We show that a) reversible dethreading/rethreading cycles of the pseudorotaxane can be performed by either oxidation and successive reduction of the electron‐donor wire or reduction and successive oxidation of the electron‐accepting tetracationic cyclophane, and b) because of this special behavior, the input (electrochemical)/output (absorption spectrum) characteristics of this molecular‐level system correspond to those of an XNOR logic gate.