A site-selective spectroscopy of naphthalene and quinoline in TEOS/MTEOS xerogels

Literature Information

Publication Date 2005-03-21
DOI 10.1039/B500578G
Impact Factor 3.676
Authors

C. Crépin, V. Dubois, F. Goldfarb, F. Chaput, J. P. Boilot


View Original

Abstract

Fluorescence and phosphorescence spectra and decay times are recorded upon a narrow-band laser excitation for naphthalene (N) and quinoline (Q) embedded in xerogels prepared from MTEOS/TEOS mixtures, in the 10–300 K temperature range. A site selectivity of the excitation is observed at T < 120 K and T < 150 K, for N and Q, respectively. In the case of quinoline, different families of sites are characterized. The results are discussed in terms of comparison with the N and Q emission behaviour in other environments, especially in rare-gas matrices.

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Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics
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