[(η5-pentamethylcyclopentadienyl)Cr(C6H3-2,6-(i-Pr)2-NCC2H3(CH3)C6H2ClO)Cl] | 1172617-52-5

• 英文名称: [(η5-pentamethylcyclopentadienyl)Cr(C6H3-2,6-(i-Pr)2-NCC2H3(CH3)C6H2ClO)Cl]
• CAS: 1172617-52-5
• 化学式: C₃₂H₄₀Cl₂CrNO
• 分子量: 577.578
• InChiKey: DEMRFXYYIOKXDU-LEYMYNFJSA-L

计算性质

• 辛醇/水分配系数(LogP)：
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• 重原子数：
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• sp3杂化的碳原子比例：
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反应信息

• 作为产物：
  描述：

  4-chloro-7-hydroxy-3-methylindan-1-(N-2,6-diisopropylphenylimine) 、 trichlorotris(tetrahydrofuran)chromium(III) 、 lithiumpentamethylcyclopentadiene 在 sodium hydride 作用下， 以 四氢呋喃 为溶剂， 以46%的产率得到[(η5-pentamethylcyclopentadienyl)Cr(C6H3-2,6-(i-Pr)2-NCC2H3(CH3)C6H2ClO)Cl]
  参考文献：
  名称：

  Half-Sandwich Chromium(III) Catalysts Bearing Hydroxyindanimine Ligands for Ethylene Polymerization

  摘要：

  A series of novel half-sandwich chromium(III) complexes bearing hydroxyindanimine ligands, [Cp*Cr[ArN=CC2H3(CH3)C6HR1R2O]Cl (Ar = Ph, R-1 = H, R-2 = Me (2a), R-2 = Cl (2c); Ar = 2,6-(Pr2C6H3)-Pr-i, R-1 = H, R-2 = Me (2b), R-2 = Cl (2d); Ar = Ph, R-1 = Bu-t, R-2= Me (2e))], were synthesized by the reaction of Cp*CrCl2(THF) and the sodium salts of the hydroxylindanone-imine ligands in THF at -78 degrees C. Complex 2c has been confirmed by single-crystal X-ray analysis. The complex adopts a three-legged piano stool geometry with a pseudo-octahedral coordination environment. After activation with only a small amount of AlEt3, these catalytic precursors exhibit high activities (up to 1.68 x 10(5) g PE (mol Cr)(-1) h(-1)) for ethylene polymerization to afford high molecular weight PE ((5.45-9.23) x 10(5) g mol(-1)). The catalytic activities of the chromium complexes increase with decreasing steric hindrance on the nitrogen atom of the hydroxyl-indanone-imine ligand. The introduction of the bulky ortho-Bu-t group and the para-chlorine atom on the phenol hydroxyl improved the activity for the polymerization.

  DOI：

  10.1021/om900279p