Spectral,thermal and magnetic studies of biacetylmonoxime isonicotinoylhydrazone complexes

The synthesis and characterization of Co(II), Ni(II), Cu(II), Zn(II), Cd(II) and UO²⁺₂ complexes of biacetylmonoxime isonicotinoylhydrazone (BMINH) are reported. Elemental-analysis, magnetic, thermal and spectral (IR, visible and NMR) measurements have been used to characterize the complexes. IR spectral data show that the ligand behaves in a bidentate and/or tridentate manner. An octahedral structure is proposed for the Ni(II) complexes, while a square-planar structure is proposed for both Co(II) and Cu(II) complexes, on the basis of magnetic and spectral measurements.