| 131079-04-4

• CAS: 131079-04-4
• 化学式: C₂₂H₃₂NbO*C₂₄H₂₀B
• 分子量: 724.636
• InChiKey: IFHQVHHNCVYJHB-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：

  在 CO 作用下， 以 甲苯 为溶剂， 生成
  参考文献：
  名称：

  Synthesis and reactivity of η6-arene derivatives of niobium(II), niobium(I), and niobium(O)

  摘要：

  The primary reduction products in the Al/AlX3/NbX5/arene system, namely Nb(eta-6-arene)(AlX4)2, X = Cl, arene = benzene, hexamethylbenzene; X = Br, arene = hexamethylbenzene, have been isolated. Tetrahydrofuran at room temperature reacts with Nb(eta-6-hexamethylbenzene)(AlBr4)2, to give the aluminium-free complex Nb2(eta-6-hexamethylbenzene)2Br4, whose crystal structure was determined by X-ray diffraction methods. In the presence of tetrahydrofuran or dimethoxyethane, the eta-6-mesitylene-tetrahaloaluminato complexes are further reduced by aluminium to bis-mesityleneniobium(0), Nb(mes)2, which undergoes: a) disproportionation with CO to [Nb(mes)2(CO)]+[Nb(CO)6]-, b) oxidation by V(CO)6 or (4,4'-dimethyl-2,2'-dipyridyl)(BPh4)2 under carbon monoxide to [Nb(mes)2(CO)]X, X = [V(CO)6]- or BPh4-. The structure of [Nb(mes)2(CO)] BPh4 has been determined by X-ray diffraction methods. In the presence of CO, Nb(mes)2 is reduced by CoCp*2 [Cp* = eta-5-C5(CH3)5] to [Nb(CO)6]-, which was isolated as its CoCp*2+ derivative; it efficiently deoxygenates CO2 to CO in the presence of carbon monoxide acceptors such as the [Nb(mes)2(THF)]+ cation.

  DOI：

  10.1016/0022-328x(91)80041-h
• 作为产物：
  描述：

  在 THF 作用下， 以 四氢呋喃 为溶剂， 生成
  参考文献：
  名称：

  Calderazzo, Fausto; Pampaloni, Guido; Rocchi, Lucia, Organometallics, 1994, vol. 13, # 7, p. 2592 - 2601

  摘要：

  DOI：

文献信息

• Calderazzo, Fausto; Pampaloni, Guido; Rocchi, Lucia, Angewandte Chemie, 1991, vol. 103, p. 109 - 110
  作者：Calderazzo, Fausto、Pampaloni, Guido、Rocchi, Lucia、Straehle, Joachim、Wurst, Klaus

  DOI：——

  日期：——