195608-04-9Relevant academic research and scientific papers
Multinuclear NMR Spectroscopic and X-ray Crystallographic Studies of a Series of Mercury(II) Complexes Containing the Bidentate Phosphine Ligand Ph2PCH2Si(CH3)2CH 2PPh2 (L2)
Alyea, Elmer C.,Ferguson, George,Shakya, Ram P.,Meehan, Paul R.
, p. 4749 - 4752 (2008/10/09)
The bidentate phosphine ligand Ph2PCH2Si(CH3)2CH 2PPh2 (L2), an analogue of 1,3-bis(diphenylphosphino)-propane (dppp), coordinates to mercury(II) salts to form complexes of the general formula [HgX2·L2] (X = Cl, Br, I, NCS). Infrared, Raman, and multinuclear (1H, 13C, 31P, 199Hg) NMR spectroscopic studies show that the complexes exhibit four-coordinate pseudotetrahedral metal geometry. [HgI2(Ph2PCH2Si(CH3) 2CH2PPh2)] (1) crystallizes in the monoclinic space group P21/n with a = 13.028(2) A?, b = 17.402(5) A?, c = 13.849(2) A?, β = 90.635(14)°, V= 3139.5(11) A?3, and Z = 4. The structure contains a tetrahedral mercury center with the phosphine ligand bound in a bidentate fashion: Hg-P 2.511(2), 2.515(2) A?; P-Hg-P 105.28(6)°. The complex [HgCl2]2·L2 has also been generated via a 2:1 metal:phosphine stoichiometry.
