Reactions of benzoylmethylenetriphenylphosphorane with mercury(II) halides: spectral and structural characterization of 2*2CH3OH and 2

Article abstract of DOI:10.1016/0022-328X(94)05217-Y

The reactions of the title ylide with mercury(II) chloride and mercury(II) iodide in equimolar ratios using methanol as solvent have yielded crystals of <(C6H5)3PCHCOC6H5 HgCl2>2*2CH3OH (1) and <(C6H5)3PCHCOC6H5 HgI2>2 (2) respectively.Single crystal X-ray analyses reveal the presence of centrosymmetric dimeric structures containing the ylide and HgX2 (X = Cl or I) in both cases.The IR and 1H NMR data of the product 3 formed by the reaction of mercury (II) bromide with the same ylide are similar to those of 1 and 2.Analytical data indicate a 1 : 1 stoichiometry between the ylide and Hg^II halide in each of the three products.Keywords: Mercury; Ylide; Crystal structure