cis-1,2-bis(fluorodimethylsilyl)-1,2-diphenylethene | 60703-07-3

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: cis-1,2-bis(fluorodimethylsilyl)-1,2-diphenylethene
• CAS: 60703-07-3
• 化学式: C₁₈H₂₂F₂Si₂
• 分子量: 332.54
• InChiKey: AAJQTOLCGASGNY-ZCXUNETKSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  6.03
• 重原子数：
  22.0
• 可旋转键数：
  4.0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.22
• 拓扑面积：
  0.0
• 氢给体数：
  0.0
• 氢受体数：
  0.0

反应信息

• 作为反应物：
  描述：

  cis-1,2-bis(fluorodimethylsilyl)-1,2-diphenylethene 生成 E-1,2-bis(fluorodimethylsilyl)-1,2-diphenylethene
  参考文献：
  名称：

  X-ray analysis and NMR-studies of E- and Z-1,2-bis(fluorodimethylsilyl)-1,2-diphenylethenes

  摘要：

  The E- and Z-isomers (1a,1b) of 1,2-bis(fluorodimethylsilyl)-1,2-diphenylethene have been investigated by H-1, C-13 and F-19 NMR spectroscopy, mass spectrometry and single crystal X-ray structure analysis. The NMR spectra of both compounds were markedly different, caused by the non-equivalence of all methyl groups and through non-bonding F-F interactions (through-space coupling) in isomer 1b. X-ray investigations reveal a widening of the C=C-Si angles at the expense of Si-C-Ph; the C=C bond of the Z-isomer is lengthened to 135.4(2) pm. (C) 1998 Elsevier Science S.A.

  DOI：

  10.1016/s0022-328x(97)00597-4
• 作为产物：
  描述：

  二苯基乙炔 、 1,4-difluoro-2,2,3,3-tetramethyl-1,4-bis<8-(dimethylamino)-1-naphthyl>-1,4-diphenyltetrasilane 在 四(三苯基膦)钯 作用下， 以 甲苯 为溶剂， 反应 20.0h， 生成 cis-1,2-bis(fluorodimethylsilyl)-1,2-diphenylethene
  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