1,1'-((3,6-dibromo-1,2-phenylene)bis(methylene))bis(5,6-dimethyl-1H-benzo[d]imidazole) | 1427305-89-2

• 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: 1,1'-((3,6-dibromo-1,2-phenylene)bis(methylene))bis(5,6-dimethyl-1H-benzo[d]imidazole)
• CAS: 1427305-89-2
• 化学式: C₂₆H₂₄Br₂N₄
• 分子量: 552.311
• InChiKey: JHRSMQJXCAWBPE-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  7.24
• 重原子数：
  32.0
• 可旋转键数：
  4.0
• 环数：
  5.0
• sp3杂化的碳原子比例：
  0.23
• 拓扑面积：
  35.64
• 氢给体数：
  0.0
• 氢受体数：
  4.0

反应信息

• 作为反应物：
  描述：

  1,1'-((3,6-dibromo-1,2-phenylene)bis(methylene))bis(5,6-dimethyl-1H-benzo[d]imidazole) 、 苯乙炔 在 bis-triphenylphosphine-palladium(II) chloride 、 copper(l) iodide 、 三乙胺 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 反应 12.0h， 以78%的产率得到1,1'-((3,6-bis(phenylethynyl)-1,2-phenylene)bis(methylene))bis(5,6-dimethyl-1H-benzo[d]imidazole)
  参考文献：
  名称：

  A benzimidazole-based ratiometric fluorescent sensor for Cr3+ and Fe3+ in aqueous solution

  摘要：

  A novel ratiometric fluorescent sensor bearing two benzimidazole groups has been synthesized. The sensor showed a ratiometric fluorescence response with an enhancement of the ratios of emission intensities at 443 and 378 nm from 0.17 to 3.21 for Cr3+. The ratios of emission intensities at 443 and 380 nm were enhanced from 0.40 to 2.09 for Fe3+. Fe3+ revealed significant adsorption in the UV-vis region, which can be used to discriminate Cr3+ and Fe3+. Detection limits of the method for Cr3+ and Fe3+ were 25 mu M and 2 mu M, respectively. In addition, the sensor showed good selectivity to Cr3+ and Fe3+ over other metal ions. (C) 2013 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.dyepig.2013.02.005
• 作为产物：
  描述：

  5,6-二甲基苯并咪唑 、 1,4-dibromo-2,3-bis(bromomethyl)benzene 在 sodium hydroxide 作用下， 以 水 、 N,N-二甲基甲酰胺 为溶剂， 生成 1,1'-((3,6-dibromo-1,2-phenylene)bis(methylene))bis(5,6-dimethyl-1H-benzo[d]imidazole)
  参考文献：
  名称：

  A benzimidazole-based ratiometric fluorescent sensor for Cr3+ and Fe3+ in aqueous solution

  摘要：

  A novel ratiometric fluorescent sensor bearing two benzimidazole groups has been synthesized. The sensor showed a ratiometric fluorescence response with an enhancement of the ratios of emission intensities at 443 and 378 nm from 0.17 to 3.21 for Cr3+. The ratios of emission intensities at 443 and 380 nm were enhanced from 0.40 to 2.09 for Fe3+. Fe3+ revealed significant adsorption in the UV-vis region, which can be used to discriminate Cr3+ and Fe3+. Detection limits of the method for Cr3+ and Fe3+ were 25 mu M and 2 mu M, respectively. In addition, the sensor showed good selectivity to Cr3+ and Fe3+ over other metal ions. (C) 2013 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.dyepig.2013.02.005