(N,N'-bis(2,6-diisopropylphenyl)benzamidinate)2ZrCl2 | 865357-26-2

• 英文名称: (N,N'-bis(2,6-diisopropylphenyl)benzamidinate)2ZrCl2
• CAS: 865357-26-2
• 化学式: C₆₂H₇₈Cl₂N₄Zr
• 分子量: 1041.46
• InChiKey: MFWQVLVKAPRAOI-UHFFFAOYSA-L

反应信息

• 作为反应物：
  描述：

  (N,N'-bis(2,6-diisopropylphenyl)benzamidinate)2ZrCl2 、 甲基锂 以 乙醚 为溶剂， 以63%的产率得到(N,N'-bis(2,6-diisopropylphenyl)benzamidinate)2ZrMe2
  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
• 作为产物：
  描述：

  N,N'-bis(2,6-diisopropylphenyl)benzamidine 、 氯化锆(IV) 在 LiCH₂SiMe₃ 作用下， 以 甲苯 为溶剂， 以57%的产率得到(N,N'-bis(2,6-diisopropylphenyl)benzamidinate)2ZrCl2
  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