reflections converged at R = 0.055. The molecular structure consists of monomeric units with two bidentate C2Zr(CH2PMe2)2 molecules acting as chelating ligands to a tetrahedral Ni0 centre. The six-membered Zr(CH2PMe2)2Ni rings adopt a chair conformation. Steric strain by interaction of the axial cyclopentadienyl and methyl ligands at Zr and P, respectively, causes these rings to be considerably flattened.
所述organozircomum取代膦的CP 2 Zr的(X)CH 2 PME 2(CP =η 5 -C 5 H ^ 5 ; X =
氯,CH 2 PME 2)已经从制备的CP 2的ZrCl 2和的LiCH 2 PME 2。在这些化合物中,膦基团充当monohapto(η 1 - )
配体。与CO反应后,双(膦基甲基)
锆配合物形成红色配合物,通过NMR光谱显示该配合物包含新型的
氧化锆杂环。含Ni(COD)2,CP 2 Zr(CH 2 PMe 2)2形成2:1络合物[CP 2 Zr(CH 2 PMe 2)2 ] 2 Ni。晶体(来自
四氢呋喃)是三斜晶系,空间群P ,参数a 13.433(5),b 18.062(3),c 19.505(2)Å,α64.35(2),β76.82(1),γ71.28(2) °,V 4018.12埃3,d X 1.445克厘米-3为ž = 4,μ(
钼ķ α)11.5厘米-1,Ť