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Tris(1-methyl-imidazol-2-yl)phosphane Complexes of Pnictogen, Tetrel, and Triel Cations
Riccardo Suter1, Paul A Gray1, Neil Burford1
1Department of Chemistry, University of Victoria, Victoria, British, Columbia, V8W 3V6, Canada.
Abstract:
cations gallium indium nitrogen ligands pnictogens tetrelThe synthesis and characterization of salts with the generic formula [P(Im)3 M][OTf]x (Im=1-methyl-imidazol-2-yl; M=P, As or Sb and x=3; M=Ge or Sn and x=2) are reported. In all cases, the cations adopt a cage structure with two chemically and energetically distinct apical lone pairs. In contrast, complexes of gallium and indium engage two P(Im)3 ligands resulting in a distorted octahedral geometry for the triel center in compounds of the generic formula [{P(Im)3 }2 M][OTf]3 (M=Ga or In). An assessment of the acidity and basicity of the new compounds is presented.
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