5,5'''''''-dibromo-3,3''',3''''''',4''''-tetraoctyl-2,2':5',2'':5'',2''':5''',2'''':5'''',2''''':5''''',2''''':5'''''',2'''''''-octithiophene | 451524-23-5

• 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: 5,5'''''''-dibromo-3,3''',3''''''',4''''-tetraoctyl-2,2':5',2'':5'',2''':5''',2'''':5'''',2''''':5''''',2''''':5'''''',2'''''''-octithiophene
• CAS: 451524-23-5
• 化学式: C₆₄H₈₀Br₂S₈
• 分子量: 1265.68
• InChiKey: YMLDNLIGZUWHNM-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  26.98
• 重原子数：
  74.0
• 可旋转键数：
  35.0
• 环数：
  8.0
• sp3杂化的碳原子比例：
  0.5
• 拓扑面积：
  0.0
• 氢给体数：
  0.0
• 氢受体数：
  8.0

反应信息

• 作为反应物：
  描述：

  5,5'''''''-dibromo-3,3''',3''''''',4''''-tetraoctyl-2,2':5',2'':5'',2''':5''',2'''':5'''',2''''':5''''',2''''':5'''''',2'''''''-octithiophene 在 四(三苯基膦)钯 氢氧化钾 、 copper(l) iodide 、 三乙胺 作用下， 以 甲醇 、 苯 为溶剂， 生成
  参考文献：
  名称：

  Oligo(octithienylene-diethynylene)s as Unprecedentedly Long Conjugated Nanomolecules

  摘要：

  [GRAPHICS]A series of oligo(octithienylene-diethynylene)s alternately composed of octithiophene and diacetylene units have been prepared by a random Eglinton coupling reaction among mono- and diethynyloctithiophenes. The largest compound isolated in the oligomeric series is comprised of twelve octithiophene units and eleven diacetylene units, and its molecular length reaches ca. 43 nm, which is the longest among single-component conjugated nanomolecules.

  DOI：

  10.1021/ol026150r
• 作为产物：
  描述：

  2-(3-octylthiophenyl)magnesium bromide 在 1,3-bis[(diphenylphosphino)propane]dichloronickel(II) N-溴代丁二酰亚胺(NBS) 、 正丁基锂 作用下， 以 四氢呋喃 、 二硫化碳 、 乙醚 、 N,N-二甲基甲酰胺 、 苯 为溶剂， 生成 5,5'''''''-dibromo-3,3''',3''''''',4''''-tetraoctyl-2,2':5',2'':5'',2''':5''',2'''':5'''',2''''':5''''',2''''':5'''''',2'''''''-octithiophene
  参考文献：
  名称：

  Oligo(octithienylene-diethynylene)s as Unprecedentedly Long Conjugated Nanomolecules

  摘要：

  [GRAPHICS]A series of oligo(octithienylene-diethynylene)s alternately composed of octithiophene and diacetylene units have been prepared by a random Eglinton coupling reaction among mono- and diethynyloctithiophenes. The largest compound isolated in the oligomeric series is comprised of twelve octithiophene units and eleven diacetylene units, and its molecular length reaches ca. 43 nm, which is the longest among single-component conjugated nanomolecules.

  DOI：

  10.1021/ol026150r

文献信息

• Oligothiophenes incorporated in a polysilsesquioxane network: application to tunable transparent conductive films
  作者：Ichiro Imae、Daisuke Tokita、Yousuke Ooyama、Kenji Komaguchi、Joji Ohshita、Yutaka Harima

  DOI：10.1039/c2jm32259e

  日期：——

  Novel polysilsesquioxanes incorporating long oligothiophenes (octamer to dodecamer) have been synthesized. Cyclic voltammetry and absorption spectroscopy of the polymer films showed the negative shift of oxidation potentials and the red shift of absorption bands with increasing the length of oligothienylene unit. Electrical conductivities and mobilities of charge carriers were changed by the doping level and their maximum values also increased with the length of oligothienylene unit. Work functions of the polymer films could be tuned from 5.3 to 5.7 eV by increasing the doping level. The comparison with the monomer films suggested that the rigidity of the polymer network strongly affects mechanical, spectroscopic, electrochemical, and electrical properties of the polymer films.

  我们合成了含有长低聚噻吩（从八聚体到十二聚体）的新型聚硅烷基喹喔啉。聚合物薄膜的循环伏安法和吸收光谱显示，随着低聚噻吩单元长度的增加，氧化电位发生负移，吸收带发生红移。电荷载流子的电导率和迁移率随掺杂水平的变化而变化，其最大值也随低聚噻吩单元长度的增加而增加。聚合物薄膜的功函数可通过提高掺杂水平在 5.3 至 5.7 eV 之间进行调整。与单体薄膜的比较表明，聚合物网络的刚性对聚合物薄膜的机械、光谱、电化学和电学性能有很大影响。