Electrochemical investigation of palladium complexes with organic sulphides and their use in extraction differential pulse polarography.
Dialkyl-, amino-, keto- and ketoaminosulphide complexes of palladium(II) are shown to undergo one- or two-step reduction in a mixed acetonitrile-toluene solvent containing Bu(4)NClO(4) at 0.1 M concentration. The half-wave potentials of the complexes show a certain dependence on the ligand structure, a positive shift of the potentials being caused by an increase in the pi-acceptor ability of the ligands. The limiting currents are proportional to the concentration of the complex, according to the Ilkovic equation. Fast-scan differential pulse polarography was applied to the determination of palladium(II) in the organic phase after extraction of its complex with dihexylsulphide.
Budnikov
H C
HC
Faculty of Chemistry, V.I. Ul'yanov-Lenin State University, Lenina 18, Kazan, 420008, USSR.
Maystrenko
V N
VN
Murinov
Y I
YI