Abstract

SABOUNCHEI, S. Javad; JODAIAN, Vida  and  NEMATTALAB, Hassan. Synthesis and characterization of transition metal (Hg(II), Ag(I) and Cd(II)) complexes of some new phosphorus ylides. S.Afr.j.chem. (Online) [online]. 2009, vol.62, pp.9-13. ISSN 1996-840X.

Reaction of two new phosphorus ylides Ph₃PCHCOC₁₀H₇ (Y¹) and Ph₃PCHCOC₄H₃S(Y²) with mercury(II) halides and a previously reported ylide (p-tolyl)₃PCHCOOCH₂Ph (Y³) with CdCl₂ in equimolar ratios using methanol as solvent yielded binuclear complexes of the type [(Y).HgX₂]₂ (Y = Y¹ and Y², X = Cl, Br and I) and a complex of [(Y³).HgCl₂]₂. The latter ylide reacts with Hg(NO₃)₂.H₂O in the same solvent with equimolar ratios to give a polynuclear complex [Hg(Y³)(NO₃)(µ,-NO₃)]_n. Also, the reaction between ylides and AgNO₃ in 1:2 molar ratios gave mononuclear complexes. Characterization of these products was carried out by elemental analysis, IR and multinuclear NMR techniques.

Keywords : Phosphorus ylides; triphenylphosphine; mercury(II) nitrate; silver nitrate.

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