(2,6-diisopropyl-C6H3-NC(CH3)C(CH3)N-3,5-diisopropyl-C6H2-CH2-3'5'-diisopropyl-C6H2-NC(CH3)C(CH3)N-2,6-diisopropyl-C6H3)(NiCl2)2 | 518069-41-5

• 英文名称: (2,6-diisopropyl-C6H3-NC(CH3)C(CH3)N-3,5-diisopropyl-C6H2-CH2-3'5'-diisopropyl-C6H2-NC(CH3)C(CH3)N-2,6-diisopropyl-C6H3)(NiCl2)2
• CAS: 518069-41-5
• 化学式: C₅₇H₈₀Cl₄N₄Ni₂
• 分子量: 1080.48
• InChiKey: DBCVIMRCBQAISN-VGMISHNDSA-J

计算性质

• 辛醇/水分配系数(LogP)：
  None
• 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：

  氯化镍二甲氧基乙烷 、 2,6-diisopropyl-C6H3-NC(CH3)C(CH3)N-3,5-diisopropyl-C6H2-CH2-3'5'-diisopropyl-C6H2-NC(CH3)C(CH3)N-2,6-diisopropyl-C6H3 以 二氯甲烷 为溶剂， 以92%的产率得到(2,6-diisopropyl-C6H3-NC(CH3)C(CH3)N-3,5-diisopropyl-C6H2-CH2-3'5'-diisopropyl-C6H2-NC(CH3)C(CH3)N-2,6-diisopropyl-C6H3)(NiCl2)2
  参考文献：
  名称：

  New bi-nuclear and multi-nuclear α-diimine/nickel catalysts for ethylene polymerization

  摘要：

  Bi-nickel-centre catalysts {[2,6-diisopropyl-C-6 H-3-N=C(CH3)-(CH3)C=N-3,5-di-R-C6H2-CH2-3',5'-di-R-C6H2-N=C(CH3)-(CH3)C=N-2.6-diisopropyl-C6H3][NiCl2]; R, -CH(CH3)(2), -CH2CH3, -CH3} were prepared by Schiff-base condensation of 2,3-butanedione with 2,6-diisopropylaniline and substituted bis-aniline, and subsequent metathesis reaction with (DME)NiCl2. Multi-nickel-centre catalysts {-[(-N=C(CH3)-(CH3)C=N-3,5-di-R-C6H2-CH2-3',5'-di-R-C6H2-)-NiCl2](n)-; R, -CH(CH3)(2), n = 4.0; R, -CH2CH3, n = 4.0-; R, -CH3, n = 2.5} were prepared by Schiff-base condensation of 2,3-butanedione with substituted bis-aniline, and subsequent metathesis reaction with (DME)NiCl2. Comparing with mono-nickel-centre catalysts, the new catalysts have much bigger molecules, particularly the distance between every two active centres was controlled for bi-nickel-centre catalysts, and the distances among several active centres were controlled for multi-nickel-centre catalysts, resulting in the micro chemical environment of nickel centre being regulated. The catalytic evaluation clearly showed that this structural regulation had significant influence on catalytic activity. When the substitute was isopropyl or ethyl. the new catalysts demonstrated much higher catalytic activity than the corresponding mono-nickel-centre catalysts; but when the substitute was methyl. the new catalysts demonstrated lower catalytic activity than the corresponding mono-nickel-centre catalysts. The most efficient new catalyst was multi-nickel-centre catalyst with ethyl as substitute, which catalytic activity was high up to 3220 gPE/(gNih) at 25 degreesC with Al(MAO)/Ni ratio at 500. (C) 2004 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.molcata.2004.10.013