Reactivity of C(sp2)-Pd and C(sp3)-Pd bonded palladacycles with diphosphines. Crystal and molecular structure of the novel A-frame complex [{Pd[2,5-Me2C6H2C(H)N(2,4,6-Me3C6H2)-C6]}2(μ-Ph2PCH2PPh2)2(μ-Cl)][PF6]

►Five- and six-membered palladacylces give differing species with bridging diphosphines. ►Dinuclear A-frame structures with three bridging ligands. ►Six-membered dinuclear palladacyles with bridging halogen and diphosphine