Authors
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Oertel, U. ; Dudkina, M.M. ; Komber, H. ; Pilch, B. ; Tenkovtsev, A.V. ; Böhme, F.
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Title
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A spectroscopic study on the dissociation behavior of 4-hydroxybenzylideneacetone type NLO chromophores in the presence of sodium hydroxide
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Date
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21.11.2006
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Number
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13470
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Abstract
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Interactions of phenolic and carboxylic groups containing NLO chromophores with NaOH in methanol were investigated by UV/vis, fluorescence and 1H NMR measurements. With the aid of a mathematical fitting procedure, it was possible to separate the single contributions of the differently charged chromophore molecules to the overall UV/vis spectra. Individual concentrations of the involved species in dependence on the NaOH concentration were calculated by approximation of measured and calculated UV/vis spectra.<br />The fully deprotonated chromophores with their higher extent of conjugation did not exhibit remarkable fluorescence while the 3rd order NLO activity was observed to show the opposite behavior.
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Publisher
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Optical Materials
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Wikidata
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Citation
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Optical Materials 29 (2006) 377-385
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DOI
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https://doi.org/10.1016/j.optmat.2005.11.001
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Tags
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