tetrakis(5-methylpyrazole)nickel dibromide | 29302-95-2

• 英文名称: tetrakis(5-methylpyrazole)nickel dibromide
• CAS: 29302-95-2；32021-08-2；32138-91-3；63700-41-4
• 化学式: C₁₆H₂₄Br₂N₈Ni
• 分子量: 546.918
• InChiKey: ZYGSBCQLLCBJPD-UHFFFAOYSA-L

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

• 作为反应物：
  描述：

  tetrakis(5-methylpyrazole)nickel dibromide 以 氘代氯仿 为溶剂， 生成 bis(5-methylpyrazole)nickel dibromide
  参考文献：
  名称：

  Ethylene polymerization catalyzed by substituted pyrazole nickel complexes

  摘要：

  (Pyrazole)nickel dibromide complexes, (3,5-Me(2)pz)(2)NiBr2 (1), (3-Mepz)(4)NiBr2 (2), (pz)(4)NiBr2 (3) and (3,5-'Bu(2)pz)(2)NiBr2 (4), were prepared by the reaction of the appropriate pyrazole with (DME)NiBr2. Solid-state structures of these complexes show a direct relation between the steric bulk of the pyrazole ligand and structure, with more bulky ligands forming four-coordinate complexes (1 and 4) whereas the less bulky ligands formed six-coordinate complexes (2 and 3). Activation of selected complexes (1 and 3) with methylaluminoxane (MAO) produced species that catalyzed the polymerization of ethylene to form high density polyethylene. (C) 2004 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.jorganchem.2004.03.005
• 作为产物：
  描述：

  乙二醇二甲醚溴化镍 、 3-甲基吡唑 以 二氯甲烷 为溶剂， 以72%的产率得到tetrakis(5-methylpyrazole)nickel dibromide
  参考文献：
  名称：

  Ethylene polymerization catalyzed by substituted pyrazole nickel complexes

  摘要：

  (Pyrazole)nickel dibromide complexes, (3,5-Me(2)pz)(2)NiBr2 (1), (3-Mepz)(4)NiBr2 (2), (pz)(4)NiBr2 (3) and (3,5-'Bu(2)pz)(2)NiBr2 (4), were prepared by the reaction of the appropriate pyrazole with (DME)NiBr2. Solid-state structures of these complexes show a direct relation between the steric bulk of the pyrazole ligand and structure, with more bulky ligands forming four-coordinate complexes (1 and 4) whereas the less bulky ligands formed six-coordinate complexes (2 and 3). Activation of selected complexes (1 and 3) with methylaluminoxane (MAO) produced species that catalyzed the polymerization of ethylene to form high density polyethylene. (C) 2004 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.jorganchem.2004.03.005