trans-[(Py)2(mesityl)Ni(II)Br] | 566918-28-3

• 英文名称: trans-[(Py)2(mesityl)Ni(II)Br]
• 英文别名: trans-Ni(2,4,6-C6H2Me3)Brpy2
• CAS: 566918-28-3
• 化学式: C₁₉H₂₁BrN₂Ni
• 分子量: 415.983
• InChiKey: ACBQSUNECVJARQ-UHFFFAOYSA-M

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：
  None
• 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：

  [nickel(II)(pyridine)4(chloride)2] 以 四氢呋喃 、 乙醚 为溶剂， 生成 trans-[(Py)2(mesityl)Ni(II)Br]
  参考文献：
  名称：

  Synthesis of dialkyl, diaryl and metallacyclic complexes of Ni and Pd containing pyridine, α-diimines and other nitrogen ligands

  摘要：

  The alkylation of NiCl(2)py(4) or PdCl(2)py(2) with organomagnesium or organolithium reagents affords dialkyl complexes cis-MR(2)py(2) (R = Me, CH2SiMe3, CH2Ph, CH2CMe2Ph, 2,4,6-C6H2Me3). The methyl and trimethylsilyl derivatives undergo ligand exchange reactions with chelating nitrogen ligands (alpha-diimines or 2-imidoylpyridines), yielding the corresponding dialkyl derivatives in good to excellent yields. A catalytic amount of PMe3 induces the transformation of the nickel complex Ni(CH2CMe2Ph)(2)py(2) into the metallacyclic derivative NiCH2CMe2-o-C6H4(py)(2). The latter, and the related palladacycle Pd(CH2CMe2-o-C6H4) (cod), also undergo facile ligand exchange reactions. (C) 2003 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/s0022-328x(03)00691-0

文献信息

• Investigation of the Ligand Exchange Behavior of Square‐Planar Nickel( <scp>II</scp> ) Complexes by X‐ray Absorption Spectroscopy and X‐ray Diffraction
  作者：Martin P. Feth、Axel Klein、Helmut Bertagnolli

  DOI：10.1002/ejic.200390114

  日期：2003.3

  local structure of nickel and bromine in three square-planar nickel(II) complexes [(2,2′-bipyridyl)(bromo)(mesityl)nickel(II)] (1), [(bromo)(N,N-diisopropyl-1,2-ethanediimine)(mesityl)nickel(II)] (2), [(bromo)(mesityl)bis(triphenylphosphane)nickel(II) (3)] and their ligand exchange behavior towards several solvents has been determined by means of X-ray Absorption Near Edge Spectroscopy (XANES), Extended

  镍和溴在三个方形平面镍 (II) 配合物中的局部结构 [(2,2'-联吡啶)(bromo)(mesityl)nickel(II)] (1), [(bromo)(N,N-二异丙基-1,2-乙二亚胺)(mesityl)nickel(II)] (2), [(bromo)(mesityl)bis(triphenylphosphane)nickel(II) (3)] 和它们对几种溶剂的配体交换行为已被确定通过 X 射线吸收近边光谱 (XANES)、扩展 X 射线吸收精细结构光谱 (EXAFS)、X 射线衍射 (XRD)、多核 NMR 和紫外/可见光谱。制备了几种方形平面和八面体镍 (II) 配合物，并将其作为参考化合物进行光谱表征。交换行为很大程度上取决于传入的供体配体（溶剂分子）的性质。在某些情况下，一种或多种配体的取代伴随着正方形平面几何形状的守恒。在其他溶剂中，几何形状从方形平面变为八面体。获得的结构信息对于进一步开发此类镍