The anodic electrochemistry of a series of bidentate phosphine chalcogenides and bidentate phosphine Lewis acid adducts, both with a metallocene backbone, was examined in dichloromethane containing [NBu 4 ][PF 6 ]. Oxidation of the ferrocene compounds dppfE 2 and dippfE 2 (E = O, S, BH 3 , CH 3 + ) was reversible on the cyclic voltammetric (CV) time scale, while the oxidation of the dpprE 2 compounds (E = O, S, BH 3 ) was irreversible; however, the oxidation of dppfSe 2 , dippfSe 2 , and dpprSe 2 displayed an irreversible wave and the reduction of a follow-up product.