Issue 15, 2005
From the journal:

Journal of Materials Chemistry

The first silica aerogels fluorescent by excited state intramolecular proton transfer mechanism (ESIPT)

Fabiano Severo Rodembusch,ac   Leandra Franciscato Campo,a   Valter Stefani*a  and  Arnaud Rigacci*b  

* Corresponding authors

a Universidade Federal do Rio Grande do Sul, Laboratório de Novos Materiais Orgânicos, Av. Bento Gonçalves, Porto Alegre-RS, Brazil
E-mail: vstefani@iq.ufrgs.br
Web: www.iq.ufrgs.br/lnmo
Fax: +55 51 3316 7304
Tel: +55 51 3316 6285

b CENERG, Ecole des Mines de Paris, BP 207, F-06904 Sophia Antipolis cedex, France
E-mail: arnaud.rigacci@cenerg.cma.fr
Fax: +33 (0)4 93 95 75 35
Tel: +33 (0)4 93 95 75 75

c Laboratoire de Spectrométrie Physique, Université Joseph Fourier-Grenoble 1, CNRS (UMR 5588), F-38402 Saint Martin d'Hères, France

Abstract

Five silyl-functionalized benzazole dyes, fluorescent by excited state intramolecular proton transfer (ESIPT) mechanism, were synthesized by reaction of amino benzazole derivatives with 3-(triethoxysilyl)propyl isocyanate. Fluorescent silica gels were prepared and monolithic aerogels (d ≈ 0.18 g cm−3) were obtained via supercritical CO2 drying of the fluorescent gel. The photophysical behaviour of the dyes and fluorescent silica aerogels was investigated by UV–vis and steady-state fluorescence spectroscopy.

Graphical abstract: The first silica aerogels fluorescent by excited state intramolecular proton transfer mechanism (ESIPT)

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Article information

DOI
https://doi.org/10.1039/B416958A
Article type
Paper
Submitted
05 Nov 2004
Accepted
17 Jan 2005
First published
11 Feb 2005

J. Mater. Chem., 2005,15, 1537-1541

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The first silica aerogels fluorescent by excited state intramolecular proton transfer mechanism (ESIPT)

F. S. Rodembusch, L. F. Campo, V. Stefani and A. Rigacci, J. Mater. Chem., 2005, 15, 1537 DOI: 10.1039/B416958A

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