Three donor acceptor chromophores were synthesized by Knoevenagel condensation. Structures of the chromophoes were conformed by the elemental analysis and EI-MS, FT-IR, 1H-NMR, 13C-NMR spectroscopy. Absorbance and fluorescence spectra of the chromophores were studied in different solvent provide that all the chromophores are good absorbent and emission. All chromophores give same behavior red shift in absorbance and emission spectra as polarity of the solvents increase. Photophysical properties including, oscillator strength, extinction coefficient, transition dipole moment and stokes shift were investigated in order to investigate the physicochemical behaviors of synthesized chromophores. The HOMO energy levels of compound 1, 2 and 3 respectively were calculated front the onset oxidation potential of cyclic voltammogram in acetonitrile.
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