Synthesis and characterization of new nitrate-bridged polymeric complexes of mercury(II) with phosphorus ylides

Reaction of phosphorus ylides of the type X–C6H4–COCHPAr3 (X = Cl and NO2; Ar = phenyl and p-tolyl) with Hg(NO3)2 · H2O in equimolar ratios using methanol as solvent are reported. X-ray crystal structure analysis of [Hg(ClC6H4C(O)CHPPh3)(NO3)(μ-NO3)]n · (DMSO)n shows that the 1:1 complex adopts the noncentrosymmetric polymeric structure in the solid state with NO-3 anion bridges. Variation of temperature or concentration in a 31P NMR study indicates that the disappearance of satellites, due to coupling to 199Hg, occurs at increasing temperature or decreasing concentration.

Graphical abstractReaction of phosphorus ylides of the type X–C6H4–COCHPAr3 (X = Cl and NO2; Ar = phenyl and p-tolyl) with Hg(NO3)2 · H2O yields polymeric complexes. X-ray crystal structure analysis of [Hg(ClC6H4C(O)CHPPh3)(NO3)(μ-NO3)]n · (DMSO)n. shows that the 1:1 complex adopts the noncentrosymmetric polymeric structure in the solid state with NO-3 anion bridges.Figure optionsDownload full-size imageDownload as PowerPoint slide