[Ni2Br4(N-(1-(pyridin-2-yl)ethylidene)-N'-((pyridin-2-yl)methylene)-2,3,5,6-tetramethylbenzene-1,4-diamine)] | 870641-87-5

• 分子结构分类: 有机化合物 - 有机杂环化合物
• 英文名称: [Ni2Br4(N-(1-(pyridin-2-yl)ethylidene)-N'-((pyridin-2-yl)methylene)-2,3,5,6-tetramethylbenzene-1,4-diamine)]
• 英文别名: [2,3,5,6-tetramethyl-N-(pyridin-2-ylethylidene)-N-(pyridin-2-ylmethylene)benzene-1,4-diamine]dinickel tetrabromide
• CAS: 870641-87-5
• 化学式: C₂₃H₂₄Br₄N₄Ni₂
• 分子量: 793.466
• InChiKey: SANRZOYADVEPAQ-XJKHDCAFSA-J

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：

  [Ni2Br4(N-(1-(pyridin-2-yl)ethylidene)-N'-((pyridin-2-yl)methylene)-2,3,5,6-tetramethylbenzene-1,4-diamine)] 、 N,N-二甲基甲酰胺 以 N,N-二甲基甲酰胺 为溶剂， 以60%的产率得到[Ni2Br2(DMF)6(N-(1-(pyridin-2-yl)ethylidene)-N'-((pyridin-2-yl)methylene)-2,3,5,6-tetramethylbenzene-1,4-diamine)]Br2*0.75DMF
  参考文献：
  名称：

  From symmetrical to unsymmetrical bimetallic nickel complexes bearing aryl-linked iminopyridines; synthesis, structures and ethylene polymerisation studies

  摘要：

  Both symmetrical and unsymmetrical tetramethylphenyl-linked iminopyridines, 1,4-{(2-C5H4N)RC=N}(2)-2,3,5,6-Me4C6 [R = H (L1a), Me (L1b)] and 1-{(2-C5H4N)HC=N}-4-{(2-C5H4N)MeC=N}-2,3,5,6-Me4C6 (L1c), have been prepared in good yield using straightforward condensation strategies. The molecular structures of L1a and L1c reveal the adjacent imino and pyridyl nitrogen atoms to adopt transoid configurations. Interaction of L1x with two equivalents of NiX2 [NiX2 = (DME)NiBr2 (DME = 1,2-dimethoxyethane), NiCl2] in n-BuOH at elevated temperature affords the paramagnetic bimetallic complexes, [(L1x) Ni2X4] [L1x = L1a, X = Br (1a); L1x = L1b, X = Br (1b); L1x = L1c, X = Br (1c); L1x = L1a, X = Cl (1d)] in moderate to good yield. Adduct formation results on treatment of bromide-containing 1a-1c with DMF (dimethylformamide) to yield dicationic [(L1x) Ni2Br2(DMF)(6)]Br-2 [L1x = L1a (2a), L1b (2b), L1c (2c)], while with chloride-containing 1d the neutral species [(L1a)Ni2Cl4(DMF)(4)] (3) is obtained. Activation of 1a-1d and 2c with excess methylaluminoxane (MAO) generates active ethylene polymerisation catalysts (1b/MAO > 1c/MAO > 1a/MAO similar to 1d/MAO > 2c/MAO) affording mixtures of waxes and low molecular weight solid polyethylene. Multinuclear NMR and GC analysis of the waxy components reveal methyl branched materials that contain mostly internal unsaturation along with low levels of alpha-olefins. Broad molecular weight distributions are observed for all the polymers obtained, with that from 1b/MAO leading to the highest molecular weight. Single crystal X-ray diffraction studies have been performed on L1a, L1c, 2a-2c and 3. (c) 2008 Elsevier B. V. All rights reserved.

  DOI：

  10.1016/j.jorganchem.2008.05.020
• 作为产物：
  描述：

  乙二醇二甲醚溴化镍 、 N-(1-(pyridin-2-yl)ethylidene)-N'-((pyridin-2-yl)methylene)-2,3,5,6-tetramethylbenzene-1,4-diamine 以 正丁醇 为溶剂， 反应 1.5h， 以56%的产率得到[Ni2Br4(N-(1-(pyridin-2-yl)ethylidene)-N'-((pyridin-2-yl)methylene)-2,3,5,6-tetramethylbenzene-1,4-diamine)]
  参考文献：
  名称：

  [EN] TRANSITION METAL COMPOUNDS FOR OLEFIN POLYMERIZATION AND OLIGOMERIZATION
  [FR] COMPOSES METALLIQUES DE TRANSITION POUR LA POLYMERISATION D'OLEFINES ET L'OLIGOMERISATION

  摘要：

  这项发明涉及由式(I)表示的新过渡金属催化剂化合物，其中：M和M'分别是8、9、10或11族过渡金属，优选为Ni、Co、Pd、Cu或Fe；每个R基分别是氢，或烃基，取代烃基，卤代烃基，取代卤代烃基，硅烃基，取代硅烃基，锗烃基，或取代锗烃基取代基，且可选地，相邻的R基可以结合在一起形成取代或未取代的饱和、部分不饱和或芳香环或多环取代基；R'是氢，或烃基，取代烃基，卤代烃基，取代卤代烃基，硅烃基，取代硅烃基，锗烃基，或取代锗烃基取代基，且可选地，相邻的R基可以与R'结合在一起形成取代或未取代的饱和、部分不饱和或芳香环或多环取代基；每个X基分别是氢，卤素，或烃基，取代烃基，卤代烃基，取代卤代烃基，硅烃基，取代硅烃基，锗烃基，或取代锗烃基取代基，且可选地，相邻的X基可以结合在一起形成取代或未取代的饱和、部分不饱和或芳香环或多环取代基；m和m'分别为0、1、2或3；z和z'分别为0、1、2或3；N为氮；Q为氢，或烃基，取代烃基，卤代烃基，取代卤代烃基，硅烃基，取代硅烃基，锗烃基，或取代锗烃基取代基；Q'为氢，或烃基，取代烃基，卤代烃基，取代卤代烃基，硅烃基，取代硅烃基，锗烃基，或取代锗烃基取代基；L为烃基，取代烃基，卤代烃基，取代卤代烃基，硅烃基，取代硅烃基，锗烃基，或取代锗烃基取代基。

  公开号：

  WO2005118605A1