title: Synthesis and characterisation of transition metal halide complexes of the xylyl-distibine, 1,2-bis(dimethylstibanylmethyl)benzene.
abstract: Complexes of the title ligand with Cu(I), Ag(I), Au(I), Pd(II), Pt(II), Rh(III), and rare examples with Ni(II) and Co(III) have been prepared and characterised by analysis, IR, UV-vis, 1H, 63Cu and 59Co NMR spectroscopy and ES+ mass spectrometry as appropriate. The structures of [Cu[1,2-C6H4(CH2SbMe2)2]2]BF4, [PtCl2[1,2-C6H4(CH2SbMe2)2]], [M[1,2-C6H4(CH2SbMe2)2]2][PF6]2 (M = Pd or Pt), and [NiI[1,2-C6H4(CH2SbMe2)2]2]ClO4 have been determined, and the varying chelate bite and conformations of the xylyl backbone in these structures are discussed. Despite the unfavourable seven-membered chelate ring and the large soft antimony donors, 1,2-C6H4(CH2SbMe2)2 proves to be a surprisingly good ligand for late transition metals in medium oxidation states.
authors.affiliation: School of Chemistry, University of Southampton, Southampton, UK SO17 1BJ.
authors.forename: William
authors.initials: W
authors.lastname: Levason
authors.forename: Melissa L
authors.initials: ML
authors.lastname: Matthews
authors.forename: Gillian
authors.initials: G
authors.lastname: Reid
authors.forename: Michael
authors.initials: M
authors.lastname: Webster
mesh_terms: D001555:Benzene Derivatives / Q000138:chemical synthesis / Q000737:chemistry*; D018360:Crystallography, X-Ray; D006219:Halogens / Q000737:chemistry*; D008024:Ligands; D019216:Metals, Heavy / Q000737:chemistry*; D008958:Models, Molecular; D009942:Organometallic Compounds / Q000138:chemical synthesis / Q000737:chemistry*; D013267:Stilbenes / Q000138:chemical synthesis / Q000737:chemistry*; D014992:Xylenes / Q000737:chemistry*
chemical_list: D001555:Benzene Derivatives; D006219:Halogens; D008024:Ligands; D019216:Metals, Heavy; D009942:Organometallic Compounds; D013267:Stilbenes; D014992:Xylenes