1-(2,2'-bithiophen-5-yl)-2-(5'-bromo-2,2'-bithiophen-5-yl)tetramethyldisilane | 284044-16-2

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 双噻吩和低聚噻吩
• 英文名称: 1-(2,2'-bithiophen-5-yl)-2-(5'-bromo-2,2'-bithiophen-5-yl)tetramethyldisilane
• CAS: 284044-16-2
• 化学式: C₂₀H₂₁BrS₄Si₂
• 分子量: 525.726
• InChiKey: UPVKDSDHPYVEOQ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  7.64
• 重原子数：
  27.0
• 可旋转键数：
  5.0
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.2
• 拓扑面积：
  0.0
• 氢给体数：
  0.0
• 氢受体数：
  4.0

反应信息

• 作为反应物：
  描述：

  、 1-(2,2'-bithiophen-5-yl)-2-(5'-bromo-2,2'-bithiophen-5-yl)tetramethyldisilane 在 正丁基锂 作用下， 以 乙醚 、 正己烷 为溶剂， 以27%的产率得到[Dimethyl-(5-thiophen-2-ylthiophen-2-yl)silyl]-[5-[5-[dimethyl-[2,4,5-tris[[5-[5-[[dimethyl-(5-thiophen-2-ylthiophen-2-yl)silyl]-dimethylsilyl]thiophen-2-yl]thiophen-2-yl]-dimethylsilyl]phenyl]silyl]thiophen-2-yl]thiophen-2-yl]-dimethylsilane
  参考文献：
  名称：

  Nanosized starlike molecules. Synthesis and optical properties of tris- and tetrakis[oligo(disilanylenebithienylene)dimethylsilyl]benzene

  摘要：

  The syntheses of two types of starlike molecules with the arms that extend to three and four directions have been reported. The molecules with the arms consisting of a regular alternating arrangement of a silicon-silicon bond and bithienylene unit that extend to three directions were synthesized by the reactions of 1,3,5-tris(chlorodimethylsilyl) benzene, which was chosen as a core, with the lithio[oligo(disilanylenebithienylene)] derivatives. The starlike molecules with extended arms to four directions were prepared by the reaction of 1,2,4,5-tetrakis(fluorodimethylsilyl) benzene used as a core, with lithio[oligo(disilanylenebithienylene)]s. UV-Vis absorption and fluorescence properties of these starlike molecules have been investigated in a dioxane solution. The present molecules showed absorption maxima in a range of 321-337 nm, and revealed higher fluorescence quantum yields than that of the corresponding linear polymer, poly[(tetraethyldisilanylene) bithiophene]. (C) 2008 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.jorganchem.2008.10.053
• 作为产物：
  描述：

  [5-(5-Bromothiophen-2-yl)thiophen-2-yl]-[chloro(dimethyl)silyl]-dimethylsilane 、 5-溴-2,2-双噻吩 在 正丁基锂 作用下， 以 乙醚 、 正己烷 为溶剂， 以81%的产率得到1-(2,2'-bithiophen-5-yl)-2-(5'-bromo-2,2'-bithiophen-5-yl)tetramethyldisilane
  参考文献：
  名称：

  Nanosized starlike molecules. Synthesis and optical properties of tris- and tetrakis[oligo(disilanylenebithienylene)dimethylsilyl]benzene

  摘要：

  The syntheses of two types of starlike molecules with the arms that extend to three and four directions have been reported. The molecules with the arms consisting of a regular alternating arrangement of a silicon-silicon bond and bithienylene unit that extend to three directions were synthesized by the reactions of 1,3,5-tris(chlorodimethylsilyl) benzene, which was chosen as a core, with the lithio[oligo(disilanylenebithienylene)] derivatives. The starlike molecules with extended arms to four directions were prepared by the reaction of 1,2,4,5-tetrakis(fluorodimethylsilyl) benzene used as a core, with lithio[oligo(disilanylenebithienylene)]s. UV-Vis absorption and fluorescence properties of these starlike molecules have been investigated in a dioxane solution. The present molecules showed absorption maxima in a range of 321-337 nm, and revealed higher fluorescence quantum yields than that of the corresponding linear polymer, poly[(tetraethyldisilanylene) bithiophene]. (C) 2008 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.jorganchem.2008.10.053