Synthesis and optical properties of new chalcones containing 4-[bis(2-hydroxyethyl)amino]phenyl fragment |
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Institution: | 1. Institute of Technical Chemistry, Ural Branch of the Russian Academy of Sciences, 614013 Perm, Russian Federation;2. Perm State National Research University, 614990 Perm, Russian Federation |
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Abstract: | New chalcones with 4-bis(2-hydroxyethyl)amino] phenyl fragment were obtained from 4-bis(2-acetoxyethyl) amino]- benzaldehyde by the Claisen–Schmidt reaction. From their UV-VIS absorption and emission spectra, optical band gap values were calculated based on the Stokes shifts as well as the molar absorption coefficients and fluorescence quantum yields were estimated. The dependence of the absorption and emission maxima on solvent polarity and pH was evaluated. |
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Keywords: | Chalcones Chromophore Solvatochromism quantum yield thiophene derivative carbazole |
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