Control over molecular motion using thecis–transphotoisomerization of the azo group
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Open Access
- 12 July 2012
- journal article
- Published by Beilstein Institut in Beilstein Journal of Organic Chemistry
- Vol. 8 (1), 1071-1090
- https://doi.org/10.3762/bjoc.8.119
Abstract
Control over molecular motion represents an important objective in modern chemistry. Aromatic azobenzenes are excellent candidates as molecular switches since they can exist in two forms, namely thecis(Z) andtrans(E) isomers, which can interconvert both photochemically and thermally. This transformation induces a molecular movement and a significant geometric change, therefore the azobenzene unit is an excellent candidate to build dynamic molecular devices. We describe selected examples of systems containing an azobenzene moiety and their motions and geometrical changes caused by external stimuli.Keywords
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