2-[5-(4-[(S)-2-methylbutoxy]phenyl)-3-methyl]-2'''-propyl-2:5'-2':5''-2'':5'''-quaterthiophene | 947237-54-9

• 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: 2-[5-(4-[(S)-2-methylbutoxy]phenyl)-3-methyl]-2'''-propyl-2:5'-2':5''-2'':5'''-quaterthiophene
• 英文别名: 3-methyl-5-[4-[(2S)-2-methylbutoxy]phenyl]-2-[5-[5-(5-propylthiophen-2-yl)thiophen-2-yl]thiophen-2-yl]thiophene
• CAS: 947237-54-9
• 化学式: C₃₁H₃₂OS₄
• 分子量: 548.858
• InChiKey: XZZXTIWEZORTFC-FQEVSTJZSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  10.6
• 重原子数：
  36
• 可旋转键数：
  10
• 环数：
  5.0
• sp3杂化的碳原子比例：
  0.29
• 拓扑面积：
  122
• 氢给体数：
  0
• 氢受体数：
  5

反应信息

• 作为产物：
  描述：

  5,5-dimethyl-2-[4-[(2S)-2-methylbutoxy]phenyl]-1,3,2-dioxaborinane 、 5-iodo-3-methyl-2-[5-[5-(5-propylthiophen-2-yl)thiophen-2-yl]thiophen-2-yl]thiophene 在 四(三苯基膦)钯 作用下， 以 四氢呋喃 、 水 为溶剂， 以88%的产率得到2-[5-(4-[(S)-2-methylbutoxy]phenyl)-3-methyl]-2'''-propyl-2:5'-2':5''-2'':5'''-quaterthiophene
  参考文献：
  名称：

  Organic Semiconductors with Helical Structure Based on Oligothiophene derivatives Exhibiting Chiral Nematic Phase

  摘要：

  We have synthesized 2-[5-(4-[(S)-2-methylbutoxy]phenyl)-3-methyl]-2'''-propyl-2: 5'-2'-5 ''-2 ''-5"'-quaterthiophene (10), a liquid crystalline semiconductor that exhibits a chiral nematic phase, and used the time-of-flight technique to determine its carrier mobility behavior. In the chiral nematic phase, the positive carrier mobility was 2 x 10(-4)cm(2)/Vs at 120 degrees C and the negative carrier mobility was 1 x 10-4 cm(2)/Vs, both of which we attribute to electronic processes. For the negative carrier, in addition to the fast electronic process, we also observed a slow carrier transport, having mobility on the order of 10(-5)cm(2)/Vs, which we attribute to ionic conduction. Chiral dimers containing binaphthyl group exhibited stable glassy cholesteric phase and cholesteric thin films with selective reflection band in visible light area could be fabricated. They emitted circularly polarized light with dichroic parameter of 1.3 when UV light was illuminated.

  DOI：

  10.1080/15421400701735723

文献信息

• Organic Semiconductors with Helical Structure Based on Oligothiophene derivatives Exhibiting Chiral Nematic Phase
  作者：Masahiro Funahashi、Nobuyuki Tamaoki

  DOI：10.1080/15421400701735723

  日期：2007.12.13

  We have synthesized 2-[5-(4-[(S)-2-methylbutoxy]phenyl)-3-methyl]-2'''-propyl-2: 5'-2'-5 ''-2 ''-5"'-quaterthiophene (10), a liquid crystalline semiconductor that exhibits a chiral nematic phase, and used the time-of-flight technique to determine its carrier mobility behavior. In the chiral nematic phase, the positive carrier mobility was 2 x 10(-4)cm(2)/Vs at 120 degrees C and the negative carrier mobility was 1 x 10-4 cm(2)/Vs, both of which we attribute to electronic processes. For the negative carrier, in addition to the fast electronic process, we also observed a slow carrier transport, having mobility on the order of 10(-5)cm(2)/Vs, which we attribute to ionic conduction. Chiral dimers containing binaphthyl group exhibited stable glassy cholesteric phase and cholesteric thin films with selective reflection band in visible light area could be fabricated. They emitted circularly polarized light with dichroic parameter of 1.3 when UV light was illuminated.