Department of Chemistry, University of California, Berkeley, CA 94720, USA.
Dalton Trans. 2013 Aug 7;42(29):10525-32. doi: 10.1039/c3dt51087e. Epub 2013 Jun 7.
The synthesis of several nickel(II) and manganese(II) alkyl complexes supported by hydrotris(3-phenyl-5-methylpyrazolyl)borate (Tp(Ph,Me)) ligand is reported. The metal halide complexes Tp(Ph,Me)MnCl(CH3CN) (1) and Tp(Ph,Me)NiCl (4) were used as precursors for synthesis of Tp(Ph,Me)MnCH2Si(Me)3 (2), Tp(Ph,Me)MnCH2Ph (3), Tp(Ph,Me)NiCH2Si(Me)3 (5) and Tp(Ph,Me)NiCH2Ph (6). The resulting Mn(II) and Ni(II) alkyl complexes, 2-3 and 5-6, were characterized by X-ray crystallography, NMR spectroscopy, and FT-IR spectroscopy. X-ray crystallographic analysis revealed distorted tetrahedral geometries for complexes 2-3 and 5 with a κ(3)-Tp(Ph,Me). Complex 6, on the other hand, was found to have a distorted square planar geometry with κ(2)-Tp(Ph,Me) and an η(3)-benzyl ligand. Transformations of 4 and Tp(Ph,Me)CoCl (10) via treatment with NaN3 to yield Tp(Ph,Me)NiN3 (11), Tp(Ph,Me)CoN3 (12), along with the synthesis of (Tp(Ph,Me))2Ni (8) and Tp(Ph,Me)NiCl(3-Ph-5MepzH) (9) are also reported.
报道了几种镍(II)和锰(II)烷基配合物的合成,这些配合物由三(3-苯基-5-甲基吡唑基)硼(Tp(Ph,Me))配体支持。金属卤化物配合物 Tp(Ph,Me)MnCl(CH3CN)(1)和 Tp(Ph,Me)NiCl(4)被用作合成 Tp(Ph,Me)MnCH2Si(Me)3(2)、Tp(Ph,Me)MnCH2Ph(3)、Tp(Ph,Me)NiCH2Si(Me)3(5)和 Tp(Ph,Me)NiCH2Ph(6)的前体。所得的 Mn(II)和 Ni(II)烷基配合物 2-3 和 5-6 通过 X 射线晶体学、NMR 光谱和 FT-IR 光谱进行了表征。X 射线晶体学分析表明,配合物 2-3 和 5 具有扭曲的四面体几何形状,与 κ(3)-Tp(Ph,Me)配位。另一方面,配合物 6 被发现具有扭曲的正方形平面几何形状,与 κ(2)-Tp(Ph,Me)和 η(3)-苄基配体配位。通过与 NaN3 反应,4 和 Tp(Ph,Me)CoCl(10)转化为 Tp(Ph,Me)NiN3(11)、Tp(Ph,Me)CoN3(12),同时还合成了(Tp(Ph,Me))2Ni(8)和 Tp(Ph,Me)NiCl(3-Ph-5MepzH)(9)。