Synthesis, Structrure, and Eletrochemical Properties of a Copper(II) Complex with 3-Phenylpropylmalonic Acid

A 0D Cu-based complex (1) (Cu(L)₂(EDA)₂]_n, L = 3-phenylpropylmalonic acid, EDA = ethylenediamine) is synthesized by the solvent-thermal synthesis using 3-phenylpropylmalonic acid as the ligand. It is characterized and analyzed by powder X-ray diffraction, IR and UV diffuse reflectance spectroscopy, and other techniques. Complex 1 crystallizes in the triclinic crystal system with space group \(P\bar{1}\) , and each Cu²⁺ is coordinated with two ligands and a water molecule, respectively. The cyclic voltammetry curve of the electrode modified by 1 (1+CPE) is tested in the PBS buffer solution (pH = 6.5). The found pair of reversible redox peaks belonging to Cu(II)/Cu(I) prove that 1 can be used in electrochemical applications.