Nanostructured Hybrid Systems with Rhodamine 6G |
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| Authors: | Violeta Purcar Dan Donescu Cristian Petcu Marilena Vasilescu |
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| Affiliation: | 1. National R-D Institute for Chemistry and Petrochemistry–Polymer Department, Splaiul Independentei Bucharest , Romania violinaifin@yahoo.com;3. National R-D Institute for Chemistry and Petrochemistry–Polymer Department, Splaiul Independentei Bucharest , Romania;4. Physical Chemistry Institute of the Romanian Academy , Bucharest , Romania |
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| Abstract: | We synthesized hybrid materials by sol-gel process, using: methyltriethoxysilane, tetraetylorthosilicate and vinyltriethoxysilane, in the presence of Rhodamine 6G. It was synthesized as well organic-inorganic hybrids with addition of tetraisopropyl orthotitanate and maleic anhydride UV-VIS spectra of dye show two absorption peaks at 499 nm (dimer) and 530 nm (monomer). Evaluating FTIR spectra of hybrid films, it was observed a band at 1077 cm?1, characteristic of the asymmetric Si-O-Si stretching vibration in oligomer. Fluorescence spectra show that tetraisopropyl orthotitanate presence in the composites modifies the nature of the inorganic matrix and affects the interaction with the added dye. |
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| Keywords: | Hybrids oligomer precursors rhodamine 6G sol–gel process |
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