Abstract
In this study, a Schiff base ligand and its cobalt(II) and palladium(II) metal complexes were prepared. The structures of the obtained compounds were characterized through Fourier transform infrared spectroscopy, elemental analysis (microanalysis), ultraviolet–visible (UV–Vis) spectroscopy, proton (1H) and carbon (13C) nuclear magnetic resonance (1H-NMR, 13C-NMR), liquid chromatography–mass spectrometry (LC–MS), magnetic susceptibility measurements, thermogravimetric analysis and differential thermal analysis. UV spectra characteristics and basic optical parameters (e.g., absorbance band edge, optical band gap, refractive index and electrical conductance) of the ligand, Co(II) and Pd(II) complexes were investigated in dimethyl sulphoxide, N,N-dimethylformamide and ethanol (EtOH) solvents. The detailed analysis of the test results suggested that both the Pd(II) complex and, particularly, the Co(II) complex can be used in the preparation of diodes owing to their appropriate optical properties.
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