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Title
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X-ray crystal structure and spectral characterization of pseudo five-coordinate Hg(II) polymeric and four-coordinate binuclear complexes of an ambidentate sulfonium ylide
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Type
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JournalPaper
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Keywords
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Sulfonium ylide Mercury(II) halide Hg(II) polymer X-ray crystal structure
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Abstract
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The reaction of ambidentate sulfonium ylide (Me)2SCHC(O)C6H4-p-OCH3(Y) with HgX2 [X = Cl (1), Br (2) and I (3)] in equimolar ratios using methanol as the solvent leads to two types of products. Single-crystal X-ray diffraction analysis reveals (i) a two-dimensional polymer, [{HgCl2(Y)}4]n, in which the mercury(II) atom is five-coordinated and ligand Y displays C-coordination as well as an additional interaction, including O-coordination to different mercury centers and (ii) an asymmetric halide-bridged binuclear structure of the type [HgBr2(Y)]2, in which the mercury(II) center is four-coordinate and ligand Y displays C-coordination to the metal. The characterization of these compounds by IR, 1H- and 13C NMR spectroscopy confirms the coordination of the ylide to the metal through the carbon atom. Analytical data indicate a 1:1 stoichiometry between the ylide and the Hg(II) halide in all complexes.
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Researchers
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Robert W. Gable (Fifth Researcher), Collete Boscovic (Fourth Researcher), (Third Researcher), (Second Researcher), seyyed javad seyyadzadeh sabounchei (First Researcher)
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