Synthesis and Characterization of New Schiff Bases and Their Cobalt(II), Nickel(II), Copper(II), Zinc(II), Cadmium(II) and Mercury(II) Complexes

Abstract

Nickel(II), copper(II), cobalt(II), zinc(II), cadmium(II) and mercury(II) complexes chelates containing the Schiff base ligands methyliminoisonitroso‐2‐ acetylnaphthalene (HL¹) and benzyliminoisonitroso‐2‐acetylnaphthalene (HL²) have been prepared. The results suggest that the Schiff bases function as bidentate ligands and indicate a mononuclear structure for the Cu(II) complexes with square‐planar geometry. The Ni(II), Zn(II), Hg(II) and Cd(II) complexes are of tetrahedral geometry and the Co(II) complexes with octahedral geometry with water molecules at the axial positions. These compounds have been characterized by elemental analyses, magnetic susceptibility, mass, IR, UV, ¹H and ¹³C NMR spectroscopy.

Keywords:

• Schiff base ligands
• spectra
• transition metal complexes