| 622336-73-6

• CAS: 622336-73-6
• 化学式: C₁₈H₄₅BrNiO₉P₃
• 分子量: 637.065
• InChiKey: BXRGUFKYVBGWPT-UHFFFAOYSA-M

计算性质

• 辛醇/水分配系数(LogP)：
  None
• 重原子数：
  None
• 可旋转键数：
  None
• 环数：
  None
• sp3杂化的碳原子比例：
  None
• 拓扑面积：
  None
• 氢给体数：
  None
• 氢受体数：
  None

反应信息

• 作为产物：
  描述：

  tetrakis(triethylphosphite)nickel(0) 、 三溴化铝 以 甲苯 为溶剂， 生成
  参考文献：
  名称：

  摘要：

  Reactions of aluminium tribromide with the Ni(0) phosphine and phosphite complexes are studied by EPR method. AlBr3 was found to cause the oxidation of the transition metal in the (PPh3)(4)Ni complex to the univalent state with the formation of the tetracoordinated (PPh3)(3)NiBr complex. With an excess of AlBr3, the phosphine ligands are eliminated from the coordination sphere of Ni(I), and the coordinatively unsaturated complexes are destroyed to give the colloidal nickel. In the reaction of (P(OEt)(3))(4)Ni with AlBr3, Ni(0) is also oxidized to Ni(I), but the acido ligand is not eliminated even with a 15-fold excess of the Lewis acid. The activity of catalytic systems on the basis of the Ni(0)phosphine complexes and the Lewis acids in the low-molecular oligmerization reactions of olefines is determined by the cationic coordinatively unsaturated Ni(I) complexes formed in these systems.

  DOI：

  10.1023/a:1024042429252