Ni[(N(2,6-diisopropylphenyl)C(Me)]2CH)PPh3Br | 796972-53-7

• 英文名称: Ni[(N(2,6-diisopropylphenyl)C(Me)]2CH)PPh3Br
• CAS: 796972-53-7
• 化学式: C₄₇H₅₆BrN₂NiP
• 分子量: 818.543
• InChiKey: RPYOLSDBIXIPGH-IEBALEEYSA-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) 、 2-((2,6-diisopropylphenyl)amino)-4-((2,6-diisopropylphenyl)imino)-2-pentene 在 正丁基锂 作用下， 以 正己烷 、 甲苯 为溶剂， 以62.8%的产率得到Ni[(N(2,6-diisopropylphenyl)C(Me)]2CH)PPh3Br
  参考文献：
  名称：

  Ethylene polymerization and oligomerization catalyzed by bulky β-diketiminato Ni(II) and β-diimine Ni(II) complexes/methylaluminoxane systems

  摘要：

  beta-Diketiminato complexes Ni{(N(Ar)C(Me))(2)CH}Br (9), Ni{(N(Ar)C(Me))(2)CH} Pph(3)Br (10) and P-diimine complexes Ni{(N(Ar)C(Me))(2) CH2}Br-2 (5) (Ar = 2,6-iPr(2)C(6)H(3) (a), 2,6-Me2C6H3 (b)) were used as catalyst precursors for ethylene polymerization in the presence of methylaluminoxane (MAO). High molecular weight ethylene polymers as well as short chain oligomers (C4-C8) were simultaneously produced from the catalysis reactions. Ethylene polymers obtained by using these beta-N-N Ni(H)IMAO catalyst systems are mainly methyl branched. Small amounts of even number branches were also observed in the C-13 NMR spectra of the obtained ethylene polymers, which are believed generating from the incorporation of simultaneously produced alpha-olefins. Except methyl branch and the branches derived from the incorporation of alpha-olefin oligomers, the formation of other branch types via the chain walking process is not favored in beta-diketiminato Ni(II) systems. (c) 2006 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.molcata.2005.12.027