Synthesis and spectroscopic studies of dinuclear Schiff base and its transition metal complexes with Cr(III), Fe(III), Co(II), Ni(II), Cu(II) and Zn(II) ions

An acyclic Schiff base ligand containing N2O3 donor atoms was synthesized by the condensation reaction of 2,6-diformyl-4-ter-butylphenol and 4-aminoantipyrine. The synthesized ligand and complexes of the metal ions [CrIII, FeIII, (CoIINiII)-Ni-,,CuII and ZnII] were characterized by (HNMR)-H-1, (CNMR)-C-13, mass spectrometry, UV/visible, FTIR, atomic absorption, elemental analysis (C.H.N.), molar conductivitym and magnetic susceptibility measurements. A binuclear complex was obtained through phenolic oxygen acting as a bridge between two metal ions.