The heterobimetallic dimers [Pt2(PP)2(µ-Cl)2][BArF24]2 (PP = 1,1′-bis(phosphino)ferrocene ligands; BArF24 = tetrakis(3,5-bis(trifluoromethyl)phenyl)borate) were prepared by the reaction of the corresponding dichlorides, [Pt(PP)Cl2] with Na[BArF24]. The compounds were characterized by NMR spectroscopy and in some cases, X-ray crystallography. Addition of a variety of monodentate phosphines (PR3) resulted in the formation of new [Pt(PP)(PR3)Cl][BArF24] compounds. The new compounds were characterized by NMR and the X-ray crystal structures of several of these compounds were obtained. The oxidative electrochemistry of these compounds was also examined using cyclic voltammetry to determine the effect of the different PP and PR3 ligands on the potential at which these compounds undergo oxidation. In the case of [Ni(PP)Cl2], the reaction with Na[BArF24] does not appear to cleanly yield the corresponding dimeric species, [Pt2(PP)2(µ-Cl)2][BArF24]2, but rather results in the formation of several unexpected products that have been characterized by NMR spectroscopy and X-ray crystallography.

The reactivity of [M(PP)Cl2] (M = Ni or Pt; PP = 1,1’-bis(phosphino)metallocene) with Na[BArF24] (BArF24 = tetrakis(3,5-bis(trifluoromethyl)phenyl)borate)) and reactions of the subsequent products

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