Electrochemical behaviour of mixed tetrametallic clusters with Pd2M2 and Pt2M2 cores (M = Cr, Mo, W)
Abstract
Tetrametallic clusters[M1M2(µ3-CO)(µ2-CO)2(C5H5)(PPh3)]2(M1= Pd, Pt; M2= Cr, Mo, W) exhibit an unexpected irreversible two-electron reduction leading to the rupture of the metallic core into identified fragments; in contrast, the first two oxidation waves of the clusters indicate that oxidation occurs in one-electron steps.