The orderly progression of redox behaviour of 4d- and 5d-hexacworometallate complexes

Abstract

A comprehensive study of the redox behaviour of 4d- and 5d-hexachlorometallates (Zr to Pd and Ta to Pt, omitting only Tc) has been undertaken in methylene chloride; the successive reversible E° value for the redox couples [MCl₆]^z/z–1(Z = 0, –1, –2, –3) follow orderly trends which have been interpreted in terms of core-charge and inter-electronic correlation terms, and the redox behaviour of the hexachlorometallates is compared to that of the hexafluorometallates.