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Issue 15, 2005
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The first silica aerogels fluorescent by excited state intramolecular proton transfer mechanism (ESIPT)

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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


Submitted
05 Nov 2004
Accepted
17 Jan 2005
First published
11 Feb 2005

J. Mater. Chem., 2005,15, 1537-1541
Article type
Paper

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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