Synthesis and characterization of copper(II) complexes of semicarbazones

Abstract

Copper(II) complexes of the general composition Cu(ligand) 2X 2 (where X=CI −, Br −, NO − 3, ClO − 4 and 1 2 SO 2− 4) and Cu(ligand) (CH 3COO) 2 have been synthesized with methyl n-pentyl ketone and methyl n-hexyl ketone semicarbazones. All the complexes prepared have been characterized by elemental analysis, magnetic moment, molar conductance, IR, electronic and electron spin resonance spectral studies. The complexes Cu(ligand) 2X 2 (X = Cl −, Br −, NO − 3) and Cu(ligand) (CH 3COO) 2 may have tetragonal geometry, while the complexes Cu(ligand) 2X 2 (X = ClO − 4 and 1 2 SO 2− 4) may be assigned a five-coordinated trigonally distorted square pyramidal geometry.