RESEARCH ARTICLE

 

Synthesis and characterization of transition metal (Hg(II), Ag(I) and Cd(II)) complexes of some new phosphorus ylides

 

 

S. Javad Sabounche; Vida Jodaian; Hassan Nemattalab

Faculty of Chemistry, University of Bu-Ali Sina, Hamedan 65174, Iran

 

 

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ABSTRACT

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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Acknowledgements

We are grateful to the University of Bu-Ali Sina for a grant and to Mr. Zebarjadian for recording the NMR spectra.

 

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Received 2 June 2008
Revised 17 October 2008
Accepted 6 January 2009

 

 

* To whom correspondence should be addressed. E-mail: jsabounchei@yahoo.co.uk