2,2,3,3-tetramethyl-1,1,4,4-tetrakis-(dimethylamino)-1,4-diphenyltetrasilane | 223432-70-0

• 分子结构分类: 有机化合物 - 有机金属化合物 - 有机类金属化合物
• 英文名称: 2,2,3,3-tetramethyl-1,1,4,4-tetrakis-(dimethylamino)-1,4-diphenyltetrasilane
• CAS: 223432-70-0
• 化学式: C₂₄H₄₆N₄Si₄
• 分子量: 502.998
• InChiKey: OLDWOXABQMYUDG-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.58
• 重原子数：
  32.0
• 可旋转键数：
  9.0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.5
• 拓扑面积：
  12.96
• 氢给体数：
  0.0
• 氢受体数：
  4.0

反应信息

• 作为反应物：
  描述：

  2,2,3,3-tetramethyl-1,1,4,4-tetrakis-(dimethylamino)-1,4-diphenyltetrasilane 在 三氯化铝 、 氟化氢吡啶 作用下， 以 乙醚 为溶剂， 反应 24.8h， 生成 1,4-difluoro-2,2,3,3-tetramethyl-1,4-bis(1-naphthyl)-1,4-diphenyltetrasilane
  参考文献：
  名称：

  Synthesis, structure, and reactivity of 1,ω-bis(pseudo-pentacoordinated) 1,ω-difluoro-oligosilanes bearing 8-(dimethylamino)-1-naphthyl groups

  摘要：

  1,omega-Bis[8-(dimethylamino)-1-naphthyl]-1,omega-difluorotrisilane 1 (omega = 3) and tetrasilane 2 (omega = 4) have been prepared. The X-ray crystallography of dl-1 and meso-1 shows unsymmetrical structures having different coordination modes at the two terminal silicons. The unsymmetrical nature of the structure of 1 can also be observed by solid state CP/MAS NMR spectroscopy. Trisilane 1 is thermochemically labile and undergoes facile degradation at 145 degrees C, but is photochemically stable under irradiation of its benzene solution with a 6 W-low pressure mercury lamp, making a sharp contrast to the behavior of their tetracoordinate counterparts containing naphthyl groups which are thermochemically stable but photochemically active. Tetrasilane 2 undergoes a Pd(0)-catalyzed alpha-elimination of a fluorosilane moiety at the two pseudo-pentacoordinated silicon atoms to form the 1,2-difluorodisilane, which is trapped with diphenylacetylene as a double-silylation product. (C) 1999 Elsevier Science S.A. All rights reserved.

  DOI：

  10.1016/s0022-328x(98)00973-5
• 作为产物：
  描述：

  1,2-二氯四甲基二硅烷 、 lithium 以 四氢呋喃 为溶剂， 生成 2,2,3,3-tetramethyl-1,1,4,4-tetrakis-(dimethylamino)-1,4-diphenyltetrasilane
  参考文献：
  名称：

  Synthesis, structure, and reactivity of 1,ω-bis(pseudo-pentacoordinated) 1,ω-difluoro-oligosilanes bearing 8-(dimethylamino)-1-naphthyl groups

  摘要：

  1,omega-Bis[8-(dimethylamino)-1-naphthyl]-1,omega-difluorotrisilane 1 (omega = 3) and tetrasilane 2 (omega = 4) have been prepared. The X-ray crystallography of dl-1 and meso-1 shows unsymmetrical structures having different coordination modes at the two terminal silicons. The unsymmetrical nature of the structure of 1 can also be observed by solid state CP/MAS NMR spectroscopy. Trisilane 1 is thermochemically labile and undergoes facile degradation at 145 degrees C, but is photochemically stable under irradiation of its benzene solution with a 6 W-low pressure mercury lamp, making a sharp contrast to the behavior of their tetracoordinate counterparts containing naphthyl groups which are thermochemically stable but photochemically active. Tetrasilane 2 undergoes a Pd(0)-catalyzed alpha-elimination of a fluorosilane moiety at the two pseudo-pentacoordinated silicon atoms to form the 1,2-difluorodisilane, which is trapped with diphenylacetylene as a double-silylation product. (C) 1999 Elsevier Science S.A. All rights reserved.

  DOI：

  10.1016/s0022-328x(98)00973-5