Issue 7, 2005
From the journal:

Journal of Materials Chemistry

Photoresponsive ordered hybrid materials containing a bridged azobenzene group

Eric Besson,a   Ahmad Mehdi,a   Dan A. Lerner,b   Catherine Reyéa  and  Robert J. P. Corriu*a  

* Corresponding authors

a Laboratoire de Chimie Moléculaire et Organisation du Solide, UMR 5637 CNRS, Université de Montpellier II, Sciences et Techniques du Languedoc, Place E. Bataillon, F-34095 Montpellier Cedex 5, France
E-mail: reye@univ-montp2.fr
Fax: 33 467153852
Tel: 33 467143832

b ENSCM, UMR 5618 CNRS, 8, rue de l'Ecole Normale, F-34296 Montpellier Cedex 5, France

Abstract

This paper describes the synthesis of 4,4′-[(triisopropoxysilyl)propyloxy]azobenzene and the preparation of the ordered hybrid material containing the bridged azobenzene moieties within the framework by using the direct liquid crystal templating approach. We show that a sizable fraction of the azobenzene groups is reversibly photoisomerized though the chromophore is covalently linked to the silica matrix at both ends. In contrast, the photoisomerization did not occur in the corresponding material prepared in the absence of template. This is explained by a regular dilution of the chromophores into silica thanks to the template used for the preparation of the material.

Graphical abstract: Photoresponsive ordered hybrid materials containing a bridged azobenzene group

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Article information

DOI
https://doi.org/10.1039/B416262E
Article type
Paper
Submitted
21 Oct 2004
Accepted
10 Jan 2005
First published
19 Jan 2005

J. Mater. Chem., 2005,15, 803-809

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Photoresponsive ordered hybrid materials containing a bridged azobenzene group

E. Besson, A. Mehdi, D. A. Lerner, C. Reyé and R. J. P. Corriu, J. Mater. Chem., 2005, 15, 803 DOI: 10.1039/B416262E

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