2008
DOI: 10.1016/j.saa.2007.05.027
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Sol–gel materials doped with 3-(3-(4-(dimethylamino)phenyl)propenoyl)-2H-chromen-2-one: Spectroscopic and structural elucidation

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Cited by 5 publications
(8 citation statements)
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“…5 The chemical composition and the thermogravimetrical (TG) behavior of the xerogels were checked by TG/FTIR measurements. 6,7 The sample to be investigated was transferred into a crucible that was made from aluminum or platinum. Typical sample masses were within a range of 5-100 mg.…”
Section: Methodsmentioning
confidence: 99%
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“…5 The chemical composition and the thermogravimetrical (TG) behavior of the xerogels were checked by TG/FTIR measurements. 6,7 The sample to be investigated was transferred into a crucible that was made from aluminum or platinum. Typical sample masses were within a range of 5-100 mg.…”
Section: Methodsmentioning
confidence: 99%
“…Moreover, transparent gels containing high rare-earth content are good candidates for optical filters as thin films or monoliths. On the other hand, the preparation of transparent monoliths, containing Sm(III)-coumarin complexes [Sm(K4) 2 3 was demonstrated [5,6]. Here, K4 and K2 are different coumarin molecules, K4 is ethyl 2-(7-hydroxy-2-oxo-2H-chromen-4-yl)acetate and K2 is 3-(3-(4-(dimethylamino)phenyl)propenoyl)-2H-chromen-2-one.…”
Section: Introductionmentioning
confidence: 99%
“…The preparation of K4 doped silica gels follows our recently described sol-gel procedure [7,8]. Tetraethoxysilane (TEOS) (98 %) and absolute EtOH (99.8 %) are mixed together in a 1:1 molar ratio.…”
Section: Methodsmentioning
confidence: 99%
“…Some questions concerning the change of optical spectra due to the gel formation, the chemical composition, thermal stability of coumarin doped gels, however, remained open. This paper is a continuation of our recent studies of embedded organic molecules in gel glasses, using sol-gel technology [7,8]. Now we describe in details the optical properties of silica gels and ethanol solutions doped with K4 using UV/Vis, excitation and luminescence spectroscopy in order to understand the luminescence/excitation properties of such materials and to use the optical spectra as a probe for coumarin incorporation in the gel structure.…”
Section: Introductionmentioning
confidence: 99%
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