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

Reaction of phosphorus ylides of the type X-C6H4- COCH = PAr3 (X = Cl and NO2; Ar = phenyl and p-tolyl) with Hg(NO3)(2) center dot H2O in equimolar ratios using methanol as solvent are reported. X-ray crystal structure analysis of [Hg(ClC6H4C(O)CHPPh3)(NO3)(mu-NO3)](n) center dot (DMSO)(n) shows that the 1:1 complex adopts the noncentrosymmetric polymeric structure in the solid state with NO3- anion bridges. Variation of temperature or concentration in a P-31 NMR study indicates that the disappearance of satellites, due to coupling to 199 Hg, occurs at increasing temperature or decreasing concentration. (C) 2007 Elsevier B.V. All rights reserved.