| 139554-76-0

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• CAS: 139554-76-0
• 化学式: C₄₄H₅₄N₄O₂Si₂W₂
• 分子量: 1094.81
• InChiKey: RBIHPUYYARZSEH-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.31
• 重原子数：
  54.0
• 可旋转键数：
  8.0
• 环数：
  6.0
• sp3杂化的碳原子比例：
  0.18
• 拓扑面积：
  31.42
• 氢给体数：
  0.0
• 氢受体数：
  6.0

反应信息

• 作为产物：
  描述：

  Tungsten hexakis(dimethylamide) 、 三苯基硅醇 以 正己烷 为溶剂， 以68%的产率得到
  参考文献：
  名称：

  The preparation and characterization of M2(OEPh3)2(NMe2)4,where M = Mo and W and E = C and Si. The x-ray crystal structures of gauche-W2(OCPh3)2(NMe2)4, anti-Mo2(OCPh3)2(NMe2)4 and anti-W2(OSiPh3)2(NMe2)4

  摘要：

  Reaction of M2(NMe2)6 (M = Mo, W) with triphenylmethanol in hexane/ether produces M2(OCPh3)2(NMe2)4 (I) as yellow crystals in high yield (92-97%). M2 (OCPh3)2(NMe2)4 are air-sensitive, soluble in aromatic solvents and decompose around 160-degrees-C. The H-1 NMR of I is temperature dependent and shows a mixture of anti and gauche rotamers. The X-ray crystal structures of I reveal exclusively the gauche isomer for tungsten and the anti isomer for molybdenum. The reactions between M2(NMe2)6 and triphenylsilanol (2 equiv.) yield M2(OSiPh3)2(NMe2)4 compounds (M = Mo, W) (II) as orange crystals. In the presence of > 6 equiv. of Ph3SiOH the M2(NMe2)6 compounds react further to give yellow crystalline compounds, M2(OSiPh3)4(NMe2)2. In compound II, where M = W, the W2O2N4 skeleton adopted the anti conformation with W-W = 2.2954(6) angstrom, W-O = 1.925(4) angstrom, W-N = 1.935(8) angstrom, W-W-O = 108.1(1)-degrees, W-W-N = 102(1)-degrees. The addition of Ph3SiOH (> 6 equiv.) to W2(OBu(t))6 yielded the related compound W2 (OBu(t))2(OSiPh3)4.

  DOI：

  10.1016/s0277-5387(00)86188-4