Synthesis and characterization of Cu(II) and Fe(II) metal complexes of oxazepine derivative via Schiff base [Fe(HPOHBOT)Cl2] and [Cu(HPOHBOT)Cl2]

摘要

A Schiff base and its derivative (oxazepine) have been synthesized by the reaction between thio-semicarbazide and aromatic aldehyde 4-hydroxybenzaldehyde in ethanol in the presence of acetic acids to yield the Schiff base. This Schiff base on treatment with phthalic anhydride to give seven-member heterocyclic ring called oxazepine. Oxazepineas di-dentate ligand treated with hydrated metal chlorides CuCl2 and FeCl2 in the presence of ethanol as solvent to yield tetrahedral complexes. The structures of synthesized ligand and complexes have been established on the basis of their spectral Fourier transform infrared (FTIR), mass, 1H-NMR, elemental analysis C, H, N as well as molar conductance. The purity of the compounds was confirmed by thin layer chromatography (TLC).