5-(2,2'-bithien-5-yl)-2,2'-bithieno[3,2-b]thiophene | 1193633-87-2

• 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: 5-(2,2'-bithien-5-yl)-2,2'-bithieno[3,2-b]thiophene
• 英文别名: 5-Thieno[3,2-b]thiophen-5-yl-2-(5-thiophen-2-ylthiophen-2-yl)thieno[3,2-b]thiophene
• CAS: 1193633-87-2
• 化学式: C₂₀H₁₀S₆
• 分子量: 442.695
• InChiKey: PITCFBOKBUFDRJ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  7.9
• 重原子数：
  26
• 可旋转键数：
  3
• 环数：
  6.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  169
• 氢给体数：
  0
• 氢受体数：
  6

反应信息

• 作为产物：
  描述：

  triisopropyl{5'-[5'-(triisopropylsilyl)-2,2'-bithieno[3,2-b]thien-5-yl]-2,2'-bithien-5-yl}silane 在 四丁基氟化铵 作用下， 以 四氢呋喃 为溶剂， 反应 14.0h， 以88%的产率得到5-(2,2'-bithien-5-yl)-2,2'-bithieno[3,2-b]thiophene
  参考文献：
  名称：

  Thiophene/Thieno[3,2-b]thiophene Co-oligomers: Fused-Ring Analogues of Sexithiophene

  摘要：

  A series of six-ring oligothiophenes containing one to three degrees of ring fusion were assembled by a combination of metal-catalyzed Stifle cross-coupling and oxidative homocoupling reactions. The effect of position and extent of ring fusion on the electronic properties Was Studied by UV-vis absorption and fluorescence spectroscopies, and these data were interpreted in the context of TD-DFT computational analysis. Within each set of regioisomers, a slight red shift is revealed in the onset of the UV-vis absorption spectra when the fused-ring unit is located nearer to the periphery of the oligomer, indicating a narrower HOMO-LUMO gap. Incorporation Of the unit of ring fusion toward the interior of the oligomer results in a decrease in the longest wavelength emission maximum and I reduced Stokes shift, and is accompanied by all increase In fluorescence quantum yield.

  DOI：

  10.1021/jo902044a

文献信息

• Thiophene/Thieno[3,2-<i>b</i>]thiophene Co-oligomers: Fused-Ring Analogues of Sexithiophene
  作者：John T. Henssler、Xinnan Zhang、Adam J. Matzger

  DOI：10.1021/jo902044a

  日期：2009.12.4

  A series of six-ring oligothiophenes containing one to three degrees of ring fusion were assembled by a combination of metal-catalyzed Stifle cross-coupling and oxidative homocoupling reactions. The effect of position and extent of ring fusion on the electronic properties Was Studied by UV-vis absorption and fluorescence spectroscopies, and these data were interpreted in the context of TD-DFT computational analysis. Within each set of regioisomers, a slight red shift is revealed in the onset of the UV-vis absorption spectra when the fused-ring unit is located nearer to the periphery of the oligomer, indicating a narrower HOMO-LUMO gap. Incorporation Of the unit of ring fusion toward the interior of the oligomer results in a decrease in the longest wavelength emission maximum and I reduced Stokes shift, and is accompanied by all increase In fluorescence quantum yield.