Synthesis and characterisation of transition metal halide complexes of the xylyl-distibine, 1,2-bis(dimethylstibanylmethyl) benzene

Levason, William, Matthews, Melissa L., Reid, Gillian and Webster, Michael (2004) Synthesis and characterisation of transition metal halide complexes of the xylyl-distibine, 1,2-bis(dimethylstibanylmethyl) benzene. Dalton Transactions, (4), 554-561. (doi:10.1039/b400214h).

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, H-1, Cu-63 and Co-59 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.

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Contributors

Author: William Levason

Author: Gillian Reid

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