Estimation of excited state dipole moments of di(4-methylphenyl)carbazone and its Co(II), Cu(II), Zn(II) complexes from the solvent effect on their ultraviolet absorption spectra

Abstract

The solvent effect on the ultraviolet absorption spectra of di(4-methylphenyl)carbazone and its Co(II), Cu(II), Zn(II) complexes have been studied by synthesizing and characterizing them by magnetic moment, IR, 1H NMR, ESR and Fluorescence spectral measurements. The electric dipole moments of these compounds in the first electronically excited state have been determined. The results indicate that the observed band systems in these compounds may be attributed to π ∗←π transition.