1-ethyl-2-(phenylazo)imidazole | 928202-04-4

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 唑类
• 英文名称: 1-ethyl-2-(phenylazo)imidazole
• 英文别名: (Z)-1-ethyl-2-(phenylazo)imidazole
• CAS: 928202-04-4
• 化学式: C₁₁H₁₂N₄
• 分子量: 200.243
• InChiKey: RPECJHRXDVSBLM-YPKPFQOOSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.32
• 重原子数：
  15.0
• 可旋转键数：
  3.0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.18
• 拓扑面积：
  42.54
• 氢给体数：
  0.0
• 氢受体数：
  4.0

反应信息

• 作为反应物：
  描述：

  1-ethyl-2-(phenylazo)imidazole 在 sodium docusate 作用下， 以 水 为溶剂， 生成 1-乙基-2-[(E)-苯基偶氮]-1H-咪唑
  参考文献：
  名称：

  Gayen, Pailab; Sinha, Chittaranjan, Journal of the Indian Chemical Society, 2013, vol. 90, # 6, p. 751 - 762

  摘要：

  DOI：
• 作为产物：
  描述：

  1-乙基-2-[(E)-苯基偶氮]-1H-咪唑 在 sodium docusate 作用下， 以 水 为溶剂， 生成 1-ethyl-2-(phenylazo)imidazole
  参考文献：
  名称：

  Gayen, Pailab; Sinha, Chittaranjan, Journal of the Indian Chemical Society, 2013, vol. 90, # 6, p. 751 - 762

  摘要：

  DOI：

文献信息

• Effect of PEG-200 and Tween-20 on photoisomerization of 1-alkyl-2-(arylazo)imidazoles in toluene
  作者：Pallab Gayen、Chittaranjan Sinha

  DOI：10.1016/j.saa.2012.08.052

  日期：2012.12

  The photoisomerization of 1-alkyl-2-(arylazo)imidazole, trans-to-cis, has been studied in the matrix of PEG-200 and Tween-20 in toluene medium by UV light irradiation. The trans and cis-isomers have different absorption spectra. The cis-to-trans isomerization proceeds slowly in visible light irradiation while it is appreciably fast in thermal process. The rate of trans-to-cis isomerization is decreased by 30-60% in presence of PEG-200 and Tween-20. The quantum yield of the photoisomerization is also decreased by 35-55% and follows the rate sequence: free state > PEG-200-phase > Tween-20 phase. The activation energy (E-a) of cis -> trans, thermal backward isomerization, is reduced in PEG-200 and Tween-20 phase following free state > PEG-200-phase > Tween-20-phase. The branched polyhydroxo structure of Tween-20 may help to wrap the polar photochrome more efficiently than major ether functionalized PEG-200 and stabilizes trans-isomer. (C) 2012 Elsevier B.V. All rights reserved.