1D polymeric and tetranuclear silver(I) complexes with bis(diphenylphosphino) methane controlled by the sulfate anion and nitrogen heterocyclic ligands

摘要

Two new silver(I) complexes containing dppm, nitrogen heterocyclic ligands and sulfate anions, namely [Ag2(μ-dppm)2(μ-SO4)(2-amp)2]·CH3OH (1) and [Ag4(μ-dppm)2(μ-SO4)2(μ-4,4'-bpy)2]·2CH3OH (2) (dppm = bis(diphenylphosphino)methane, 2-amp = 2-aminopyrimidine, 4,4'-bipy = 4,4'-bipyridine), have been synthesized and characterized by IR, X-ray crystallography, luminescence, ~1H, ~(31)P NMR spectroscopy. In complex 1, [Ag2(μ-dppm)(μ-So4X2-amp)2] binuclear units are linked through robust hydrogen-bond synthon R2(8) to give rise to a 1D polymer. While in complex 2, two [Ag2(μ-dppm)(μ-SO4)] units are linked together to form a tetranuclear cluster by two 4,4'-bipyridine ligands.