[(η3:η1-Ind(CH2)2NMe2)Ni(PPh3)][BPh4] | 267901-91-7

• 英文名称: [(η3:η1-Ind(CH2)2NMe2)Ni(PPh3)][BPh4]
• CAS: 267901-91-7
• 化学式: C₂₄H₂₀B*C₃₁H₃₁NNiP
• 分子量: 826.491
• InChiKey: JYRKXFQXHGEPCC-UHFFFAOYSA-N

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：

  3,5-二甲基吡啶 、 [(η3:η1-Ind(CH2)2NMe2)Ni(PPh3)][BPh4] 以 氘代氯仿 为溶剂， 生成 [(η3:η0-Ind(CH2)2NMe2)Ni(PPh3)(3,5-lutidine)][BPh4]
  参考文献：
  名称：

  的阳离子镍化合物的结构和反应[（η 3：η 1 -Ind（CH 2）2 NME 2）的Ni（PPH 3）] [BPH 4 ]

  摘要：

  含有螯合氨基茚基配位体的第一镍化合物的固态结构，[（η 3：η 1 -Ind（CH 2）2 NME 2）的Ni（PPH 3）] [BPH 4 ]（2），具有已解决，并证实了胺系链与镍中心的螯合。络合物2用作降冰片烯的低聚，苯基硅烷的二聚和苯乙烯的聚合的预催化剂。这些催化反应的结果是从那些由从所述前体复合物在原位产生的阳离子种催化性质上不同的（η 3：η 0 -Ind（CH 2）2 NMe 2）Ni（PPh 3）Cl（1）。膦置换的胺系链2，得到双（膦）阳离子[（η 3：η 0 -Ind（CH 2）2 NME 2）的Ni（PH 2 PCH 2 CH 2 PPH 2）] +（3）和[ （η 3：η 0 -Ind（CH 2）2 NME 2）的Ni（PPH 3）（PR 3）] +（4，R ＝ Ph；5，R = Me）的，而的LiI反应形成中性化合物[（η 3：η 0 -Ind（CH 2）2 NME

  DOI：

  10.1021/om010200z
• 作为产物：
  描述：

  [(η3:η0-Ind(CH2)2NMe2)Ni(PPh3)Cl] 在 methylaluminoxane 作用下， 以 氘代苯 为溶剂， 生成 [(η3:η1-Ind(CH2)2NMe2)Ni(PPh3)][BPh4] 、 (η3:η0-Ind(CH2)2NMe2)Ni(PPh3)Me
  参考文献：
  名称：

  Dimerization and polymerization of ethylene catalyzed by nickel complexes bearing multidentate amino-functionalized indenyl ligands

  摘要：

  The combination of the neutral compound (eta(3) : eta(0)-Ind(CH2)(2)NMe2)Ni(PPh3)Cl (1) and methylaluminoxane (MAO) produces catalysts for the dimerization and the polymerization of ethylene. On the other hand, activation of the cationic complex [(eta(3):eta(1)-Ind(CH2)(2)NMe2)Ni(PPh3)][BPh4] (2) by MAO or trimethylaluminum leads to a system which dimerizes ethylene with high turnover frequencies (2 x 10(3) s(-1)), but does not promote its polymerization. The effects of parameters such as ethylene pressure, reaction temperature and time, solvent type, and the type and amount of activator used have been studied in order to optimize the conditions for the formation of polyethylene. In addition, a number of reactions have been studied by NMR and GC-MS analysis in an effort to identify the catalytically active species. The results of these studies point to the involvement of cationic species in the dimerization of ethylene, whereas, the active catalyst for the polymerization of ethylene appears to be a non-cationic species. (C) 2002 Elsevier Science B.V. All rights reserved.

  DOI：

  10.1016/s1381-1169(02)00463-6

文献信息

• Preparation and Characterization of Nickel Complexes with η-Indenyl Ligands Bearing a Pendant Aminoalkyl Chain
  作者：Laurent F. Groux、Francine Bélanger-Gariépy、Davit Zargarian、Rainer Vollmerhaus

  DOI：10.1021/om9907122

  日期：2000.4.1

  The aminoindenyl complexes Ind(CH2)(3,4)N(t-Bu)H}Ni(PPh3)Cl (7, 8) and Ind(CH2)(2,3)NMe2}Ni(PPh3)Cl (9, 10) have been prepared and characterized by spectroscopy and, in the case of 7 and 9, by X-ray structural studies. Although there is no interaction between the Ni center and the amine moiety of these complexes in the solid state, solution spectra point to a temperature-dependent, intramolecular N-->Ni coordination in complex 9 and a more facile, intermolecular interaction in 10. Abstraction of Cl- from these complexes led to the formation of the cations [eta(3):eta(0)-Ind(CH2)(3,4)N(t-Bu)H}Ni(PPh3)(2)](+) and [eta(3):eta(1)-Ind(CH2)(2,3)NMe2}Ni(PPh3)](+) (11, 12). The origin of the observed differences in the reactivities of these complexes is discussed in terms of the lengths of the tether and the nature of the N-substituents.