Synthesis and characterisation of transition metal halide complexes of the xylyl-distibine, 1,2-bis(dimethylstibanylmethyl)benzene
作者:William Levason、Melissa L. Matthews、Gillian Reid、Michael Webster
DOI:10.1039/b400214h
日期:——
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 [Cu1,2-C6H4(CH2SbMe2)2}2]BF4, [PtCl21,2-C6H4(CH2SbMe2)2}], [M1,2-C6H4(CH2SbMe2)2}2][PF6]2
(M = Pd or Pt), and [NiI1,2-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.
我们制备了标题配体与 Cu(I)、Ag(I)、Au(I)、Pd(II)、Pt(II)、Rh(III) 的配合物,以及与 Ni(II) 和 Co(III) 的罕见配合物,并通过分析、红外光谱、紫外-可见光谱、1H、63Cu 和 59Co NMR 光谱以及 ES+ 质谱对其进行了表征。Cu1,2-C6H4(CH2SbMe2)2}2]BF4、[PtCl21,2-C6H4(CH2SbMe2)2}]、[M1,2-C6H4(CH2SbMe2)2}2][PF6]2(M = Pd 或 Pt)和 [NiI1、2-C6H4(CH2SbMe2)2}2]ClO4,并讨论了这些结构中不同的螯合物咬合和二甲苯骨架的构象。尽管 1,2-C6H4(CH2SbMe2)2具有不利的七元螯合环和较大的软锑供体,但对于处于中等氧化态的晚期过渡金属来说,它是一种出人意料的好配体。