[(η3-methallyl)NiBr]2

• 分子结构分类: 有机化合物 - 有机盐 - 有机金属盐
• 英文名称: [(η3-methallyl)NiBr]2
• 英文别名: 2-Methanidylprop-1-ene;nickel(2+);bromide；2-methanidylprop-1-ene;nickel(2+);bromide
• 化学式: 2Br*2C₄H₇*2Ni
• 分子量: 387.387
• InChiKey: DFJZAACSCKRZFF-UHFFFAOYSA-M

计算性质

• 辛醇/水分配系数(LogP)：
  -1.6
• 重原子数：
  6
• 可旋转键数：
  0
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.25
• 拓扑面积：
  0
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  [(η3-methallyl)NiBr]2 、 9,10-dimethyl-9,10-dihydro-9,10-diboraanthracene 在 K 作用下， 以 四氢呋喃 为溶剂， 以43%的产率得到μ,η(6),η(6)-9,10-dihydro-9,10-dimethyl-9,10-diboraanthracenebis[(η(3)-methallyl)nickel]
  参考文献：
  名称：

  Ein- und Mehrkernkomplexe des 9,10-Dihydro-9,10-dimethyl-9,10-diboraanthracens

  摘要：

  A series of new transitionmetal complexes of 9,10-dihydro-9,10-dimethyl-9,10-diboraanthracene (1) was synthesized and characterized, Mono-, di-, and trinuclear species were isolated, indicating the diversity of the ligand properties of 1. The reaction of 1 with an excess of [CoCp(C2H4)(2)] yields the known 18 VE sandwich complex [(CoCp)1] (2) and the new paramagnetic 32 VE triple-decker complex [(CoCp)(2)1] (3), [RhCp(C2H4)(2)] forms with 1 the 18 VE sandwich complex [(RhCp)1] (4). Two equivalents of [FeCp(C8H12)] and 1 yield the diamagnetic 30 VE triple-decker [(FeCp)(2)1] (5) with the iron atoms eta(6) bifacially coordinated to the heterocycle. The dianion 1(2-) reacts with [CoCp* Br](2) to form [(CoCp*)(3)1] (6) with three independent 18 VE metal centres. The reactions of 1(2-) with [Ni(C3H5)Br](2) and [Ni(C4H7)Br](2) lead to the 30 VE triple-decker complexes [{Ni(C3H5)}(2)1] (7a) and [{Ni(C4H7)}(2)1] (7b) respectively. [Pd(C8H12)(2)] and [Pt(C8H12)(2)] yield in the reaction with 1 the 18 VE complexes [Pd(C8H12)1] (8) and [Pt(C8H12)1] (9) respectively. The complex [Ni{(C6H5)(2)PCH2}(2)1] (10) is generated by reacting 1(2-) with [Ni{(C6H5)(2)PCH2}Cl-2(2)]. Two equivalents of the radical anion 1(-) and Ni2+ form the labile 18 VE sandwich [Ni(1)(2)] (11). The constitutions of the new complexes have been derived from spectroscopic data and elemental analyses, and were confirmed by X-ray structure analyses for 5, 6, 7a, 8, 9, and 10.

  DOI：

  10.1016/s0022-328x(96)06217-1

文献信息

• Synthesis of (η³-allyl)(η⁴-cyclo-octa-1,5-diene) nickel cations: valuable catalysts for the oligomerization of alkenes
  作者：Richard B. A. Pardy、Igor Tkatchenko

  DOI：10.1039/c39810000049

  日期：——

  η 3 -Allylnickel cations stabilised by ‘labile’ ligands, obtained by metathetical exchange of η3-allylnickel halides with non-complexing anions in the presence of dienes or donating solvents, are efficient catalysts for the oligomerization of unsaturated hydrocarbons and lead to unusual selectivities and to new η3-allylnickel complexes which may be intermediates in these reactions.

  η3-烯丙基镍阳离子通过与非配位阴离子在双烯或供体溶剂存在下进行的离子交换反应获得，这些阳离子被“易离解”的配体稳定，是不饱和烃聚合的有效催化剂，并导致不寻常的选择性以及新的η3-烯丙基镍配合物，这些配合物可能是这些反应中的中间体。
• Ionic liquids—weakly-coordinating solvents for the biphasic ethylene oligomerization to α-olefins using cationic Ni-complexes
  作者：P Wasserscheid

  DOI：10.1016/j.molcata.2003.11.032

  日期：2004.5.18

  Hexafluorophosphate ionic liquids have been applied as catalyst phase in the selective, biphasic oligomerization of ethylene to 1-olefins with the cationic Ni-complex (eta(3)-methallyl)[bis(diphenylphosphino)methane-monoxide-kappa(2)-P,O]nickel(II) hexafluoroantimonate [(mall)Ni(dppmO)][SbF6]. The biphasic reaction mode opens up the possibility for effective catalyst recycling and offers additionally an interesting way to enhance catalytic activity. Moreover, a remarkable influence of the biphasic reaction mode-which is enabled for the first time using the ionic liquid catalyst phase-on the product selectivity is observed. Interestingly, slight modifications of the ionic liquid's cation give access to a further tuning of the product distribution. Moreover, the results of our efforts to optimize the reactor design for the specific needs of this biphasic reactions and some recycling experiments are presented. (C) 2004 Elsevier B.V. All rights reserved.