956594-31-3Relevant academic research and scientific papers
Synthesis and crystal structure of three carborane complexes, [M{7,8-(OPPh2)2-7,8-C2B9H 10}2] (M = Cu, Zn) and [Ni(thf){7,8-(OPPh 2)2-7,8-C2B9H10} 2]·thf
Dou, Jianmin,Zhang, Daopeng,Li, Dacheng,Wang, Daqi
, p. 53 - 59 (2007)
Three new carborane complexes containing the bis(phosphoryl)-nido-carborane ligand, [Cu{7,8-(OPPh2)2-7,8-C2B 9H10}2] (1), [Zn{7,8-(OPPh2) 2-7,8-C2B9H10}2] (2), and [Ni(thf){7,8-(OPPh2)2-7,8-C2B 9H10}2]·thf (3), were synthesized by the reactions of 1,2-(PPh2)2-1,2-C2B 10H10 with CuCl2·2H2O, ZnCl2, and NiCl2·6H2O, respectively, in ethanol in air. Two other compounds, 1-(OPPh2)-2-(PPh 2)-1,2-C2B10H10 (4) and H[7,8-(OPPh2)2-7,8-C2B9H 10]·0.25C2H5OH (5), were also obtained through the oxidation of the closo ligand in air. All new compounds were characterized by elemental analysis, FT-IR, 1H and 13C NMR spectroscopy, and single-crystal X-ray diffraction. In complexes 1 and 2, the metal atoms are coordinated to the four oxygen atoms of the two bidentate bis(phosphoryl) ligands [7,8-(OPPh2)2-7,8-C 2B9H10]- and adopt a square-planar geometry. For complex 3, the molecular structure reveals that the geometry at the nickel atom is square-pyramidal, with four oxygen atoms from the four OPPh2 groups and one additional one from a thf molecule. Wiley-VCH Verlag GmbH & Co. KGaA, 2007.
