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Photoactive Azobenzene‐Containing Supramolecular Complexes and Related Interlocked Molecular Compounds
Author(s) -
Asakawa Masumi,
Ashton Peter R.,
Balzani Vincenzo,
Brown Christopher L.,
Credi Alberto,
Matthews Owen A.,
Newton Simon P.,
Raymo Françisco M.,
Shipway Andrew N.,
Spencer Neil,
Quick Andrew,
Stoddart J. Fraser,
White Andrew J. P.,
Williams David J.
Publication year - 1999
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/(sici)1521-3765(19990301)5:3<860::aid-chem860>3.0.co;2-k
Subject(s) - azobenzene , photoisomerization , catenane , chemistry , supramolecular chemistry , rotaxane , photochemistry , polymer chemistry , isomerization , molecule , organic chemistry , catalysis
The reversible decomplexation/complexation of azobenzene‐containing guests by cyclobis(paraquat‐ p ‐phenylene) has been realized by the photoisomerization of the azobenzene unit embedded within the guests. The reversible photoisomerization of the azobenzene units incorporated within the π‐electron‐rich components of a [2]catenane and a [2]rotaxane has also been achieved (see figure). By contrast, in two azobenzene‐containing [2]catenanes, the trans → cis photoisomerization of the azobenzene unit is quenched because of electronic effects and/or prevented by geometrical constraints.