methyl-di(propan-2-yl)phosphane;nickel(2+);dibromide | 720700-88-9

• 分子结构分类: 有机化合物 - 有机磷化合物 - 有机膦及其衍生物
• 英文名称: methyl-di(propan-2-yl)phosphane;nickel(2+);dibromide
• CAS: 720700-88-9
• 化学式: C₁₄H₃₄Br₂NiP₂
• 分子量: 482.869
• InChiKey: RFAWLWXESNQGII-UHFFFAOYSA-L

计算性质

• 辛醇/水分配系数(LogP)：
  -0.16
• 重原子数：
  19
• 可旋转键数：
  4
• 环数：
  0.0
• sp3杂化的碳原子比例：
  1.0
• 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：

  2-methylindenyl lithium 、 methyl-di(propan-2-yl)phosphane;nickel(2+);dibromide 以 not given 为溶剂， 以0%的产率得到[Ni(η-2-methylindenyl)Br(PMe(i)Pr2)]
  参考文献：
  名称：

  Cationic Nickel Complexes Containing Bulky Phosphine Ligands:  Catalyst Precursors for Styrene Polymerization

  摘要：

  The cationic complexes [Ni(eta(3)-CH2C(R)CH2)(P)(2)] [BPh4] (R = Me, H; (P)(2) = ((PMePr2)-Pr-i)(2), ((PPhPr2)-Pr-i)(2), 1,2-bis(diisopropylphosphino)ethane (dippe)) and [Ni(eta-2-MeInd)(P)(2)] [BPh4] (2-MeInd = 2-methylindenyl; (P)(2) = ((PMePr2)-Pr-i)(2), ((PPhPr2)-Pr-i)(2), dippe) have been prepared and characterized. These materials are catalyst precursors for the nonliving polymerization of styrene to polystyrene without the need of a cocatalyst such as methylaluminoxane. The polymerization reactions are carried out in refluxing 1,2-dichloroethane, using a 1:1000 catalyst to styrene ratio, yielding essentially atactic polystyrenes with M-n in the range 14 500-155 000 Da and polydispersities between 1.89 and 9.70. The mass properties of the polymers and the overall yield depend much on the nature of the catalyst precursor.

  DOI：

  10.1021/om049883j
• 作为产物：
  描述：

  diisopropylmethylphosphine 、 nickel dibromide 以 乙醇 为溶剂， 以80%的产率得到methyl-di(propan-2-yl)phosphane;nickel(2+);dibromide
  参考文献：
  名称：

  Cationic Nickel Complexes Containing Bulky Phosphine Ligands:  Catalyst Precursors for Styrene Polymerization

  摘要：

  The cationic complexes [Ni(eta(3)-CH2C(R)CH2)(P)(2)] [BPh4] (R = Me, H; (P)(2) = ((PMePr2)-Pr-i)(2), ((PPhPr2)-Pr-i)(2), 1,2-bis(diisopropylphosphino)ethane (dippe)) and [Ni(eta-2-MeInd)(P)(2)] [BPh4] (2-MeInd = 2-methylindenyl; (P)(2) = ((PMePr2)-Pr-i)(2), ((PPhPr2)-Pr-i)(2), dippe) have been prepared and characterized. These materials are catalyst precursors for the nonliving polymerization of styrene to polystyrene without the need of a cocatalyst such as methylaluminoxane. The polymerization reactions are carried out in refluxing 1,2-dichloroethane, using a 1:1000 catalyst to styrene ratio, yielding essentially atactic polystyrenes with M-n in the range 14 500-155 000 Da and polydispersities between 1.89 and 9.70. The mass properties of the polymers and the overall yield depend much on the nature of the catalyst precursor.

  DOI：

  10.1021/om049883j