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Investigation of interactions between a NLO-dye and metal alkoxide precursors of hybrid materials

Published online by Cambridge University Press:  01 February 2011

Bénédicte Lebeau  and
Clément Sanchez
Bénédicte Lebeau
Affiliation:
Laboratoire de Matériaux Minéraux, CNRS UMR 7016, ENSCMu, UHA, 3 rue Alfred Werner, 68093 Mulhouse cedex, France
Clément Sanchez
Affiliation:
Laboratoire de Chimie de la Matière Condensée, CNRS UMR 7574, UPMC, 4 place Jussieu, 75252 Paris cedex 05, France
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Abstract

Interactions between the dye Red 17 (4-(amino-N, N-diethanol)-2-methyl-4'-nitroazobenzene) having nonlinear optical (NLO) properties and metallo-organic sol-gel precursors M(OR)n (M = Ti, Zr, Si and Sn; R = CnH2n+1) have been investigated by means of UV-VIS spectrophotometry and liquid state NMR (1H, 29Si and 119Sn) techniques. The presence of titanium, zirconium or tin alkoxides make strong modifications in the UV-VIS absorption spectrum of the Red 17 in solution. On the contrary, when the Red 17 is grafted to alkoxysilyl groups, only minor changes were observed. The resulting bathochromic shift of about 30 nm observed with transition metal or tin alkoxides was found to be due to Lewis acid-base type interactions between the Red 17 and the metallic centre.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 726: Symposium Q – Hybrid Organic-Inorganic Materials , 2002 , Q6.19
Copyright
Copyright © Materials Research Society 2002

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References

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