(η(3)-1-ethylindenyl)Ni(PPh3)Br | 713512-00-6

• 英文名称: (η(3)-1-ethylindenyl)Ni(PPh3)Br
• CAS: 713512-00-6
• 化学式: C₂₉H₂₆BrNiP
• 分子量: 544.093
• InChiKey: DJSJQWDZGJNKBP-UHFFFAOYSA-M

计算性质

• 辛醇/水分配系数(LogP)：
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• 重原子数：
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• 可旋转键数：
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• 环数：
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• sp3杂化的碳原子比例：
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• 拓扑面积：
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• 氢给体数：
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• 氢受体数：
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反应信息

• 作为产物：
  描述：

  dibromobis(triphenylphosphine)nickel(II) 、 1-乙基-1H-茚 在 n-BuLi 作用下， 以 乙二醇二甲醚 、 乙醚 、 正己烷 为溶剂， 以60%的产率得到(η(3)-1-ethylindenyl)Ni(PPh3)Br
  参考文献：
  名称：

  Synthesis, structural characterization and catalysis of ethyl-substituted indenylnickel(II) halides

  摘要：

  The reaction of (1-Et-Ind)Li (1-Et-Ind = 1-ethylindenyl) with 1.81 equivalent of Ni(PPh3)(2)Cl-2 in ether, followed by crystallization from CH2Cl2/hexane, affords (1-Et-Ind)Ni(PPh3)Cl (1) in 58% yield. Similar reaction of (1-Et-Ind)Li with 1.81 equivalent of Ni(PPh3)(2)Br-2 in 1,2-dimethoxyethane (DME) affords (1-Et-Ind)Ni(PPh3)Br (2) in 60% yield. The reaction of complex 1 with KI in THF/acetone affords (1-Et-Ind)Ni(PPh3)I (3) quantitatively. Crystal structure analysis revealed that 2 and 3 are isomorphous. The hapticities of the indenyl ligand in these complexes are very similar and significantly distorted from an idealized eta(5) mode to an unsymmetrical eta(3) mode. The complexes are inert toward the insertion of styrene, but are able to catalyze the polymerization of styrene effectively in the presence of PPh3 and NaBPh4. (C) 2004 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.poly.2004.03.001