Abstract

The first mixed phosphirene–dinitrogen and phosphirene–diazenide complexes mer-[ReCl(N2)(PPhCPhCPh)L3] (L = PMe2Ph 1a or PMePh2 1b) and [ReBr(NNPh)2(PPhCPhCPh)2(PPh3)] 2 have been prepared by treatment of the corresponding thf solutions of trans-[ReCl(N2)L4] or [ReBr3(NNPh)(PPh3)2] with PPhCPhCPh. Their redox properties have been investigated by cyclic voltammetry in an aprotic medium, at a platinum electrode, and the electrochemical EL and PL parameters estimated for the phosphirene ligand indicating that its overall electron donor/acceptor properties are similar to those of PMePh2.

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