Solid-state synthesis and characterization of copper–penicillamine complexes

Abstract

In the present study two new metal complexes of penicillamine (PenA) with molecular formula Cu [C10H20O4N2S2] and Cu[C20H42O8N4S4] were synthesized by solid-state reaction of the penicillamine ligand with copper acetate monohydrate. Analytical characterization of the complexes were based on elemental (C, H, N, and S) and UV–visible analyses. Infrared spectroscopic measurement indicate coordination of penicillamine to Cu(II) through the sulfur atom. Study based on the Powder X-ray diffraction confirmed that phase changes take place in complexes with respect to the starting material. It was also observed that both metal complexes are soluble in common solvent such as water; slightly soluble in methanol; and insoluble in acetone, dimethyl sulfoxide, dimethyl formamide, and pyridine.