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Issue 45, 2011
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Oligoazobenzenophanes—synthesis, photochemistry and properties

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Abstract

The possibility to modulate molecules reversibly by light has been fascinating chemists early on. One of the most powerful photochromic classes of compounds are azobenzenes, which have been incorporated in multiple molecular systems to alter their functionality. Recently, the incorporation of azobenzenes into macrocyclic scaffolds, azobenzenophanes, revealed a novel aspect of this interesting photoswitch. Especially, the build-in of more than one azobenzene moiety into the structure creates photochromic compounds with multiple accessible states. The cyclic arrangement also leads to a change in the photochemical properties, which offer new opportunities for functional molecular devices. In this article the synthesis as well as the photochemistry including applications of macrocyclic azobenzenes, containing more than one azobenzene unit, oligoazobenzenophanes, are reviewed.

Graphical abstract: Oligoazobenzenophanes—synthesis, photochemistry and properties

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Article information


Submitted
24 Jun 2011
Accepted
19 Jul 2011
First published
10 Aug 2011

Chem. Commun., 2011,47, 12267-12276
Article type
Feature Article

Oligoazobenzenophanes—synthesis, photochemistry and properties

R. Reuter and H. A. Wegner, Chem. Commun., 2011, 47, 12267
DOI: 10.1039/C1CC13773E

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