4,7-dibromo-2,2-dihexyl-2H-benzimidazole | 1214719-74-0

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯并咪唑类
• 英文名称: 4,7-dibromo-2,2-dihexyl-2H-benzimidazole
• 英文别名: 4,7-Dibromo-2,2-dihexylbenzimidazole；4,7-dibromo-2,2-dihexylbenzimidazole
• CAS: 1214719-74-0
• 化学式: C₁₉H₂₈Br₂N₂
• 分子量: 444.253
• InChiKey: LMOHYJAAKODBIT-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  7.6
• 重原子数：
  23
• 可旋转键数：
  10
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.68
• 拓扑面积：
  24.7
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为产物：
  描述：

  4,7-dibromo-2,2-dihexyl-2,3-dihydro-1H-benzimidazole 在 manganese(IV) oxide 作用下， 以 四氢呋喃 为溶剂， 反应 3.0h， 以4.8 g的产率得到4,7-dibromo-2,2-dihexyl-2H-benzimidazole
  参考文献：
  名称：

  Conjugated copolymers based on dihexyl-benzimidazole moiety for organic photovoltaics

  摘要：

  DOI：

  10.1016/j.polymer.2010.09.035

文献信息

• Synthesis and characterization of low-bandgap copolymers based on dihexyl-2h-benzimidazole and cyclopentadithiophene
  作者：Suhee Song、Sung Heum Park、Youngeup Jin、Jina Park、Joo Young Shim、Il Kim、Heesoo Lee、Kwanghee Lee、Hongsuk Suh

  DOI：10.1002/pola.24248

  日期：2010.10.15

  AbstractA series of new semiconducting polymers based on 4,4‐dihexyl‐4H‐cyclopenta[2,1‐b:3,4‐b′]dithiophene, 2,2‐dihexyl‐2H‐benzimidazole, and thiophene units was synthesized. The polymers show good solubility at room temperature in organic solvents owing to long alkyl chain in new acceptor, 2,2‐dihexyl‐2H‐benzimidazole. The advantage of dihexyl‐2H‐benzimidazole compared to the benzothiadiazole is to improve the solubility of the polymer. It was found that these polymers can finely be tuned for photovoltaic application by adjusting the contents ratio of the dihexyl‐2H‐benzimidazole unit. The spectra of the solid films show absorption bands with maximum peaks in the range of 421–577 nm and the absorption onsets at 588–683 nm, corresponding to band gaps of 2.11–1.82 eV. The devices with PCPDTDTHBI‐1:PC71BM showed an open‐circuit voltage (VOC) of 0.46 V, a short‐circuit current density (JSC) of 3.83 mA/cm2, and a fill factor of 0.36, giving a power conversion efficiency of 0.64%. Decrease of the dihexyl‐2H‐benzimidazole contents in the polymers induced red‐shift of the UV absorptions, and increased VOC and JSC values, to improve the efficiency of organic photovoltaics. © 2010 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem, 2010
• Novel Zwitterionic Polyelectrolytes as Efficient Interface Materials for Application in Optoelectronic Devices
  申请人：Advent Technologies Inc.

  公开号：US20140322853A1

  公开（公告）日：2014-10-30

  Facile ways towards the development of linear and brush-type zwitterionic conjugated polyelectrolytes possessing hole or electron blocking abilities are presented using combination of polymerization techniques, such as Suzuki or Stille cross coupling, Grignard Metathesis Polymerization and Atom transfer radical polymerization. These zwitterionic conjugated polyelectrolytes will serve as excellent interface materials in various optoelectronic devices.
• Conjugated copolymers based on dihexyl-benzimidazole moiety for organic photovoltaics
  作者：Suhee Song、Sung Heum Park、Youngeup Jin、Il Kim、Kwanghee Lee、Hongsuk Suh

  DOI：10.1016/j.polymer.2010.09.035

  日期：2010.10