[K(18-crown-6)(OEt2)][La(C5H3(SiMe3)2-1,3)3] | 1019780-89-2

• 英文名称: [K(18-crown-6)(OEt2)][La(C5H3(SiMe3)2-1,3)3]
• CAS: 1019780-89-2
• 化学式: C₁₆H₃₄KO₇*C₃₃H₆₃LaSi₆
• 分子量: 1144.82
• InChiKey: PKFFKYHTLOWNRL-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：

  四氢呋喃 、 [K(18-crown-6)(OEt2)][La(C5H3(SiMe3)2-1,3)3] 、 氮 、 POTASSIUM PENTAMETHYLCYCLOPENTADIENIDE 以 四氢呋喃 为溶剂， 生成 μ-η2:η2-dinitrogenbis[bis(η5-pentamethylcyclopentadienyl)(tetrahydrofuran-κO)lanthanum(III)]
  参考文献：
  名称：

  Synthesis of a Crystalline Molecular Complex of Y²⁺, [(18-crown-6)K][(C₅H₄SiMe₃)₃Y]

  摘要：

  The La2+ complex [K(18-crown-6)(OEt2)]-[Cp '' La-3] (1) [Cp '' = C5H3(SiMe3)(2)-1,3], can be synthesized under N-2, but in the presence of KC5Me5, 1 reduces N-2 to the (N=N)(2-) product [(C5Me5)(2)(THF)La](2)(mu-eta(2):- eta(2)-N-2). This suggests a dichotomy in terms of ligands that optimize isolation of reduced dinitrogen complexes versus isolation of divalent complexes of the rare earths. To determine whether the first crystalline molecular Y2+ complex could be isolated using this logic, Cp'Y-3 (2) (Cp' = C5H4SiMe3) was synthesized from YCl3 and KCp' and reduced with KC8 in the presence of 18-crown-6 in Et2O at -45 degrees C under argon. EPR evidence was consistent with Y2+ and crystallization provided the first structurally characterizable molecular Y2+ complex, dark-maroon-purple [(18-crown-6)K] [Cp'Y-3] (3).

  DOI：

  10.1021/ja207151y
• 作为产物：
  描述：

  18-冠醚-6 、 乙醚 、 (1,3-bis-(trimethylsilyl)cyclopentadienyl)₃La(III) 、 氢化钾 以 四氢呋喃 为溶剂， 生成 [K(18-crown-6)(OEt2)][La(C5H3(SiMe3)2-1,3)3]
  参考文献：
  名称：

  Synthesis of a Crystalline Molecular Complex of Y²⁺, [(18-crown-6)K][(C₅H₄SiMe₃)₃Y]

  摘要：

  The La2+ complex [K(18-crown-6)(OEt2)]-[Cp '' La-3] (1) [Cp '' = C5H3(SiMe3)(2)-1,3], can be synthesized under N-2, but in the presence of KC5Me5, 1 reduces N-2 to the (N=N)(2-) product [(C5Me5)(2)(THF)La](2)(mu-eta(2):- eta(2)-N-2). This suggests a dichotomy in terms of ligands that optimize isolation of reduced dinitrogen complexes versus isolation of divalent complexes of the rare earths. To determine whether the first crystalline molecular Y2+ complex could be isolated using this logic, Cp'Y-3 (2) (Cp' = C5H4SiMe3) was synthesized from YCl3 and KCp' and reduced with KC8 in the presence of 18-crown-6 in Et2O at -45 degrees C under argon. EPR evidence was consistent with Y2+ and crystallization provided the first structurally characterizable molecular Y2+ complex, dark-maroon-purple [(18-crown-6)K] [Cp'Y-3] (3).

  DOI：

  10.1021/ja207151y