1,1,2,2-tetrabutyldiethynyldisilane | 122202-71-5

• 分子结构分类: 有机化合物 - 乙炔化物
• 英文名称: 1,1,2,2-tetrabutyldiethynyldisilane
• 英文别名: 1,1,2,2-Tetrabutyl-1,2-diethynyldisilane；dibutyl-[dibutyl(ethynyl)silyl]-ethynylsilane
• CAS: 122202-71-5
• 化学式: C₂₀H₃₈Si₂
• 分子量: 334.693
• InChiKey: JEESEOMSSWBITC-UHFFFAOYSA-N

物化性质

• 沸点：
  368.6±25.0 °C(Predicted)
• 密度：
  0.841±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  6.51
• 重原子数：
  22
• 可旋转键数：
  15
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.8
• 拓扑面积：
  0
• 氢给体数：
  0
• 氢受体数：
  0

反应信息

• 作为反应物：
  描述：

  2-溴-5-乙基噻吩 、 1,1,2,2-tetrabutyldiethynyldisilane 在 copper(l) iodide 、 四(三苯基膦)钯 、 三乙胺 作用下， 以 甲苯 为溶剂， 反应 10.0h， 以70%的产率得到tetrabutyldi(ethylthienylethynyl)disilane
  参考文献：
  名称：

  Preparation of poly(disilanylenetetracyanobutadienyleneoligothienylene)s as new donor–acceptor type organosilicon polymers

  摘要：

  Treatment of poly(disilanyleneethynyleneoligothienyleneethynylene)s with tetracyanoethylene gave new donor-acceptor type organosilicon polymers bearing oligothienylene and tetracyanobutadienylene units as the donor and acceptor units, respectively. The polymers showed red-shifted absorption bands at lambda(max) = 513-565 nm, whose edges reached approximately 800 nm, reflecting the donor-acceptor interaction in the backbone. These polymers exhibited solvatochromic behaviors and the UV-Vis absorption maxima moved to the longer wavelengths as increasing the solvent polarity. It was also found that these polymers were photoactive and irradiation of TiO2 electrodes in the polymer solutions led to attachment of the polymers on the TiO2 surface, likely due to the formation of Si-O-Ti anchor bonds. Applications of the resulting polymer-attached TiO2 electrodes to dye-sensitized solar cells were examined. (C) 2013 Elsevier B. V. All rights reserved.

  DOI：

  10.1016/j.jorganchem.2013.10.007

文献信息

• A new route to strained cyclic disilanylene–acetylenes(1,2,5,6-tetrasilacyclo-octa-3,7-diyne)
  作者：Takahisa Iwahara、Robert West

  DOI：10.1039/c39880000954

  日期：——

  Treatment of 1,2-dichlorodisilanes with di-Grignard reagents of 1,2-diethynyldisilanes leads to high yields of the eight-membered ring compounds (1a–c) which have u.v. absorptions near 250 nm indicative of σ–π conjugation.

  用1,2-二乙炔基乙硅烷的格氏试剂处理1,2-二氯乙硅烷可导致八元环化合物（1a-c）的高收率，其紫外吸收在250 nm附近，表明有σ-π共轭。