Synthesis, structural characterization, electrochemical, photoluminescence, antiproliferative and antioxidant properties of Co(II), Cu(II) and Zn(II) complexes bearing the azo-azomethine ligands

Co(II), Cu(II) and Zn(II) complexes derived from azo-azomethine compounds were synthesized and characterized by a combination of magnetic susceptibility, elemental analyses, FTIR and UV–Visible spectroscopies. The characterized complexes were found to be mononuclear and the chelation of the ligands to the metal ions occurs through phenolic oxygen and nitrogen atoms of the azomethine group of the ligands. Solid state structure of 5 was determined by single crystal X-ray diffraction studies. The electrochemical and photoluminescence properties of the synthesized compounds were also studied.