Self-assembly and crystal structures of two heteronuclear complexes with [Ag2(μ-dppm)2(MeCN)2](SbF6)2 and [Bu4N]2[M(mnt)3] (M=Mo, W) as components

Two heteronuclear complexes Mo2Ag4(μ-dppm)4(mnt)6 · 6MeCN (1) and WAg2(μ-dppm)2(mnt)3 · MeCN  (2) were synthesized by self-assembly with [Ag2(μ-dppm)2(MeCN)2](SbF6)2 and [Bu4N]2[Mmnt)3] (M=Mo or W, dppm=bis(diphenylphosphino)methane, mnt2−  =  cis-1,2-dicyanoethylene-1,2-dithiolate) as components and characterized by IR spectra, elemental analysis, 1H NMR spectra, 31P NMR spectra and u.v.–vis spectra. The crystal structures of the two complexes were determined by X-ray analysis.