[(N-(2,6-diisopropylphenyl)-N'-(2,6-dimethylphenyl)benzamidinate)2ZrMe][MeB(C6F5)3] | 865357-35-3

• 分子结构分类: 有机化合物 - 木脂素、新木脂素和相关化合物
• 英文名称: [(N-(2,6-diisopropylphenyl)-N'-(2,6-dimethylphenyl)benzamidinate)2ZrMe][MeB(C6F5)3]
• CAS: 865357-35-3
• 化学式: C₁₉H₃BF₁₅*C₅₅H₆₅N₄Zr
• 分子量: 1400.39
• InChiKey: FAYMVQKXFBLIQS-UHFFFAOYSA-N

反应信息

• 作为产物：
  描述：

  (N-(2,6-diisopropylphenyl)-N'-(2,6-dimethylphenyl)benzamidinate)2ZrMe2 、 三(五氟苯基)硼烷 以 further solvent(s) 为溶剂， 生成 [(N-(2,6-diisopropylphenyl)-N'-(2,6-dimethylphenyl)benzamidinate)2ZrMe][MeB(C6F5)3]
  参考文献：
  名称：

  Zirconium Bisamidinate Complexes with Sterically Demanding Ligands:  Structure, Solution Dynamics, and Reactivity

  摘要：

  Bisamidinate zirconium dichloride and dimethyl complexes with the sterically demanding amidinate ligands [PhC(NAr)(2))](-) (A) and [PhC(NAr)(NAr')](-) (B) (Ar = 2,6-(Pr2C6H3)-Pr-i; Ar' = 2,6-Me2C6H3) were prepared. The steric demand of ligand A induces the unusual trans geometry in trans-(A)(2)ZrCl2, whereas (A)(2)ZrMe2 and (B)(2)ZrX2 (X = Cl, Me) adopt the more usual cis-X-2 geometry. The dynamic behavior of these complexes in solution was studied by 1D and 2D H-1 NMR spectroscopy. Reaction of (A)(2)ZrMe2 with H-2 leads, after stepwise hydrogenolysis of the Zr-Me bonds, to cyclometalation of the two amidinate ligands. The same product was obtained by thermolysis of the dimethyl complex. The square pyramidal five-coordinate 10 valence electron cationic monomethyl species [(A)(2)ZrMe](+) was generated and structurally characterized. Remarkably, the compound is unreactive toward ethylene, H-2, and CO. The sterically slightly less encumbered species [(B)(2)ZrMe](+) does polymerize ethylene, albeit with modest activity.

  DOI：

  10.1021/om050342j