2,7-bis((E)-2-(5-octylthiophen-2-yl)vinyl)[1]benzothieno[3,2-b]benzothiophene | 1284216-24-5

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯并噻吩类
• 英文名称: 2,7-bis((E)-2-(5-octylthiophen-2-yl)vinyl)[1]benzothieno[3,2-b]benzothiophene
• CAS: 1284216-24-5
• 化学式: C₄₂H₄₈S₄
• 分子量: 681.107
• InChiKey: GTHNKYTYJMZRPO-KSTNYAOJSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  15.54
• 重原子数：
  46.0
• 可旋转键数：
  18.0
• 环数：
  6.0
• sp3杂化的碳原子比例：
  0.38
• 拓扑面积：
  0.0
• 氢给体数：
  0.0
• 氢受体数：
  4.0

反应信息

• 作为产物：
  描述：

  5-N-辛基噻吩-2-甲醛 、 在 potassium tert-butylate 作用下， 以 四氢呋喃 为溶剂， 以74%的产率得到2,7-bis((E)-2-(5-octylthiophen-2-yl)vinyl)[1]benzothieno[3,2-b]benzothiophene
  参考文献：
  名称：

  Liquid crystalline dialkyl-substituted thienylethenyl [1] benzothieno[3,2-b] benzothiophene derivatives for organic thin film transistors

  摘要：

  New benzothieno[3,2-b]benzothiophene (BTBT)-based soluble semiconducting molecules have been synthesized through Horner-Emmons coupling reactions using 5-alkylthiophene- 2-carbaldehyde and BTBT-diethylphosphonate. The only difference between the two molecules is the length of alkyl chains as a substituent. The molecules are intrinsically thermotropic liquid crystalline (LC) and exhibit good solubility in common organic solvents. The semiconducting properties of the two LC molecules were evaluated in organic thin film transistors (OTFTs). After annealing the samples at the temperature at which liquid crystallinity appears, the TFT device performance improved significantly. The two conjugated molecules 4 and 5 exhibited fairly high charge carrier mobilities of 0.020 cm(2)/(Vs) (V(th) = -14.5 V, I(ON/OFF) = 1.42 x 10(5)) and 0.023 cm(2)/(Vs) (V(th) = -2.0 V, I(ON/OFF) = 1.20 x 10(6)), respectively. (C) 2010 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.orgel.2010.07.008