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Issue 5, 2012
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Photoisomerization in different classes of azobenzene

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Azobenzene undergoes transcisisomerization when irradiated with light tuned to an appropriate wavelength. The reverse cistransisomerization can be driven by light or occurs thermally in the dark. Azobenzene's photochromatic properties make it an ideal component of numerous molecular devices and functional materials. Despite the abundance of application-driven research, azobenzene photochemistry and the isomerization mechanism remain topics of investigation. Additional substituents on the azobenzene ring system change the spectroscopic properties and isomerization mechanism. This critical review details the studies completed to date on the 3 main classes of azobenzene derivatives. Understanding the differences in photochemistry, which originate from substitution, is imperative in exploiting azobenzene in the desired applications.

Graphical abstract: Photoisomerization in different classes of azobenzene

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Publication details

The article was received on 01 Jul 2011 and first published on 18 Oct 2011

Article type: Critical Review
DOI: 10.1039/C1CS15179G
Chem. Soc. Rev., 2012,41, 1809-1825

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    Photoisomerization in different classes of azobenzene

    H. M. D. Bandara and S. C. Burdette, Chem. Soc. Rev., 2012, 41, 1809
    DOI: 10.1039/C1CS15179G

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