[(2,4-pentane-N,N′-bis(2,6-diisopropylphenyl)ketiminate)Cr]2(μ–η2:η2-N2) | 945907-79-9

• 英文名称: [(2,4-pentane-N,N′-bis(2,6-diisopropylphenyl)ketiminate)Cr]2(μ–η2:η2-N2)
• 英文别名: [(2,4-pentane-N,N′-bis(2,6-diisopropylphenyl)ketiminate)Cr]2(μ-η2:η2-N2)；bis((bis(2,6-diisopropylphenyl)-2,4-ketiminato)chromium(I))-(μ2-κ2:κ2-N2)；[(i-Pr2Ph)2nacnacCr]2(μ-N2)
• CAS: 945907-79-9
• 化学式: C₅₈H₈₂Cr₂N₆
• 分子量: 967.321
• InChiKey: BOBYHWSRXUJFEJ-LEPBRZAMSA-N

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

• 作为反应物：
  描述：

  二叔丁基过氧化物 、 [(2,4-pentane-N,N′-bis(2,6-diisopropylphenyl)ketiminate)Cr]2(μ–η2:η2-N2) 以 氘代四氢呋喃 为溶剂， 生成 ((bis(2,6-diisopropylphenyl)-2,4-ketiminato)(tert-butoxido)chromium(II)
  参考文献：
  名称：

  Reactivity of a low-valent chromium dinitrogen complex

  摘要：

  (Nn(iPr)Cr)2(mu(2)-kappa(2):kappa(2)-N-2) (1, Nn(iPr) = bis(2,6-diisopropylphenyl)pentane-2,4-ketiminato), formally a chromium(I) complex, was exposed to a variety of small molecules possessing hetero-or homo-atomic single, double, or triple bonds. Reaction of 1 with adamantyl azide yielded complexes in various higher oxidation states, such as (Nn(iPr)Cr(II))(2)(mu(2)-NAd) (2), Nn(iPr)Cr(III)(kappa(2)-N(4)Ad(2)) (3), or Nn(iPr)Cr(V)(NAd)(2) (4). Compound 1 was found to reductively couple 3-pentanone to form Nn(iPr)Cr(kappa(2)-O2C2Et4) (5) and reductively couple benzylidene aniline to form both Nn(iPr)Cr(III)(cis-kappa(2)-C28H22N2) (6a) an Nn(iPr)Cr(III)(trans-kappa(2)-C28H22N2) (6b). Reaction with a stochiometric amount of benzylidene aniline yielded the imine complex Nn(iPr)Cr(eta(2)-NPhCHPh) (7). Exposure of 1 to a bulky isocyanide formed the octahedral Nn(iPr)Cr(I)[CN(C6H4(Me)(2)](4) (9). Complex 1 was also found to break the O-O, N=O, and S-S bonds in various small molecules to form Nn(iPr)Cr(II)(OCMe3) (11), Nn(iPr)Cr(V)(O)(NPh) (8), and [Nn(iPr)Cr(II)(mu-SPh)](2) (10). (C) 2010 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.ica.2010.11.024
• 作为产物：
  描述：

  (2-((2,6-diisopropylphenyl)amino)-4-((2,6-diisopropylphenyl)imino)-pent-2-ene) lithium salt 在 magnesium 作用下， 以 四氢呋喃 为溶剂， 生成 [(2,4-pentane-N,N′-bis(2,6-diisopropylphenyl)ketiminate)Cr]2(μ–η2:η2-N2)
  参考文献：
  名称：

  Binding and Activation of Small Molecules by Three-Coordinate Cr(I)

  摘要：

  [(i-Pr2Ph)(2)nacnacCr](2)(mu-eta(2):eta(2)-N-2) (2) has been prepared and structurally characterized; it contains a bridging side-on bonded dinitrogen ligand with a N-N distance of 1.249(5) A. Reactions of this reactive Cr(I) synthon with various small molecules resulted in a series of unusual molecules and transformations; thus CO yielded the binuclear isocarbonyl [(i-Pr2Ph)(2)nacnacCr](2)(CO)(mu-eta(1):eta(1)-CO)(2), ethylene gave [(i-Pr2Ph)(2)nacnacCr](2)(mu-eta(2):eta(2)-C2H4), O-2 oxidatively added to produce (i-Pr2Ph)(2)nacnacCr(O)(2), and azobenzene afforded the product of NN bond cleavage [(i-Pr2Ph)(2)nacnacCr](2)(mu-NPh)(2). 2 can be prepared in good yield and affords a facile entry to low-coordinate Cr(I) coordination chemistry.

  DOI：

  10.1021/ja0725549
• 作为试剂：
  描述：

  乙烯 在 [(2,4-pentane-N,N′-bis(2,6-diisopropylphenyl)ketiminate)Cr]2(μ–η2:η2-N2) 作用下， 以 四氢呋喃 为溶剂， 23.0~40.0 ℃ 、1.48 MPa 条件下， 生成 1-己烯
  参考文献：
  名称：

  A well-defined model system for the chromium-catalyzed selective oligomerization of ethylene

  摘要：

  铬（I）二氮络合物[(i-Pr2Ph)2nacnacCr]2(μ-η2:η2-N2)在环境压力和温度下，在没有任何助催化剂的情况下，催化乙烯向 1-己烯的选择性三聚反应。底物转化后，催化剂会完全转化为另一种铬（I），即[(i-Pr2Ph)2nacnacCr]2(μ-η2:η2-C2H4)，后者没有催化活性。含有 Cr(II) 的双核金属环已被制备成具有催化活性的候选中间体，但它们在动力学上无法解释催化作用。因此，我们转向以 Cr(III) 为特征的单核金属环，制备了铬环戊烷、铬环戊烯和铬环戊二烯作为催化中间体模型。其中，后者还能催化乙烯的三聚反应。这些结果支持这样的观点，即选择性乙烯低聚催化涉及铬（I）乙烯络合物和单核铬（III）金属环之间的相互作用。

  DOI：

  10.1039/c3dt00109a