Inter- and hetero-metallic assembly of palladium sulfide aggregates: crystal and molecular structures of [InPd2Cl3(dppf)(2)(mu(3)-S)(2)]center dot 3CH(2)Cl(2) and [Ag2Pd2(NO3)(2)(dppf)(2)(mu(3)-S)(2)] center dot 2CH(2)Cl(2)

摘要

Lewis acid/base addition between Pd-2(dppf)(2)(mu-S)(2) and MXn[M = In(III), Ga(III), Tl(I), Pb(II), Sn(IV), Bi(III), Ag(I) and Au(I); X = halide or pseudohalide; dppf = 1,1'-bis(diphenylphosphino)ferrocene] gives rise to a range of neutral or cationic intermetallics aggregates with the {Pd2MS2} or {Pd2M2S2} core. Effectively Pd-2(dppf)(2)(mu-S)(2) functions as a chelating or bridging dithio metallo-ligand. Two representative crystal structures, viz. [InPd2Cl3(dppf)(2)mu(3)-S)(2)] . 3CH(2)Cl(2) and [Ag2Pd2(NO3)(2)(dppf)(2)(mu(3)-S)(2)] . 2CH(2)Cl(2) are described and discussed. The former features an intermetallic {InPd2} triangle whereas the latter displays a heterometallic {Ag2Pd2} metal plane. Both of them are sustained and supported by capping sulfides without significant or direct metal-metal bonds. (C) 2004 Elsevier B.V. All rights reserved.