Anti dinuclear adducts of cycloheptatriene and cycloheptatrienyl ligands: Anti-[Pd2(μ-C7H8)(PPh3)4][BF4]2 and anti-[M2(μ-C7H7)(PPh3)4][BF4] (M = Pd, Pt)

We report synthesis and structural characterization of a dinuclear palladium complex of cycloheptatriene (CHT), where two metal moieties are bound to the CHT ligand in an anti-facial manner. Deprotonation of the CHT ligand in the dinuclear CHT complex gave a mixed-valence dinuclear cycloheptatrienyl (Tr) complex. A platinum congener of the dinuclear Tr complex was also synthesized.