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.

KEYWORDS:

• Solid-state synthesis
• elemental analysis
• FT-IR spectroscopy
• UV–visible spectroscopy
• powder X-ray diffraction

Acknowledgments

The authors would like to thank the following for their financial support in this project: Department of Chemistry, GC University Lahore. They would also like to thank the following for their cooperation in their research: Department of Physics, GC University Lahore and Department of Pharmacy, University of Sargodha.