oa South African Journal of Chemistry - Synthesis and characterization of transition metal (Hg(II), Ag(I) and Cd(II)) complexes of some new phosphorus ylides : research article

Volume 62, Issue 1
  • ISSN : 0379-4350



Reaction of two new phosphorus ylides PhPCHCOCH (Y1) and PhPCHCOCHS (Y2) with mercury(II) halides and a previously reported ylide (-tolyl)PCHCOOCHPh (Y3) with CdCl in equimolar ratios using methanol as solvent yielded binuclear complexes of the type [(Y).HgX] (Y=Y1 and Y2, X=Cl, Br and I) and a complex of [(Y3).HgCl]. The latter ylide reacts with Hg(NO).HO in the same solvent with equimolar ratios to give a polynuclear complex [Hg(Y3)(NO)(μ-NO)]. Also, the reaction between ylides and AgNO in 1:2 molar ratios gave mononuclear complexes. Characterization of these products was carried out by elemental analysis, IR and multinuclear NMR techniques.

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