ELECTROCHEMICAL BEHAVIOUR OF Pd(0) AND Pd(II) COMPLEXES WITH TRIPHENYLPHOSPHINE IN DIMETHYLFORMAMIDE.

Article abstract of DOI:10.1016/0013-4686(88)80004-5

The electrochemical behaviour of a palladium electrode in the presence of ligands such as chloride ions and triphenylphosphine (PPh//3) in dimethylformamide (DMF) solution, and that of a DMF solution of palladium chloride in the presence of the same ligands were investigated by cyclic voltammetry and chronopotentiometric techniques. The PdCl//2-ligands solution systems form a well-defined redox couple at high ( greater than 4) PPh//3 to Cl** minus concentration ratio. The redox couple corresponds to a quasi-reversible surface process, whereas the anodic dissolution of Pd in the presence of ligands is better described as a catalytic reaction with an irreversible charge transfer.