4-nitro-4'-ethoxyazobenzene | 147118-56-7

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 偶氮苯
• 英文名称: 4-nitro-4'-ethoxyazobenzene
• CAS: 147118-56-7
• 化学式: C₁₄H₁₃N₃O₄
• 分子量: 287.275
• InChiKey: RGPPJAGFEXPGIG-FOCLMDBBSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.38
• 重原子数：
  21.0
• 可旋转键数：
  6.0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.14
• 拓扑面积：
  97.32
• 氢给体数：
  1.0
• 氢受体数：
  6.0

反应信息

• 作为反应物：
  描述：

  10,12-二十五碳二炔酸 、 4-nitro-4'-ethoxyazobenzene 在 4-二甲氨基吡啶 、 N,N'-二环己基碳二亚胺 作用下， 以 二氯甲烷 为溶剂， 生成
  参考文献：
  名称：

  α-环糊精与含偶氮苯的聚二乙炔囊泡的光控分子识别。

  摘要：

  在本文中，使用含偶氮苯的聚二乙炔囊泡与α-环糊精的光控包含和排除反应作为驱动力来诱导PDA囊泡的色变，从而提供了一种将光化学和客体化学相结合的新型模型系统。光刺激反应性囊泡。

  DOI：

  10.1039/b820894h
• 作为产物：
  描述：

  4′-hydroxyl-4-nitroazobenzene 、 2-氯乙醇 在 potassium carbonate 、 potassium iodide 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 生成 4-nitro-4'-ethoxyazobenzene
  参考文献：
  名称：

  α-环糊精与含偶氮苯的聚二乙炔囊泡的光控分子识别。

  摘要：

  在本文中，使用含偶氮苯的聚二乙炔囊泡与α-环糊精的光控包含和排除反应作为驱动力来诱导PDA囊泡的色变，从而提供了一种将光化学和客体化学相结合的新型模型系统。光刺激反应性囊泡。

  DOI：

  10.1039/b820894h

文献信息

• Nonlinear Optical Properties of Some Cholesterol Based Liquid Crystals
  作者：Mathew George、Suresh Das

  DOI：10.1246/cl.1999.1081

  日期：1999.10

  Nonlinear optical (NLO) properties of some azobenzene linked cholesterol derivatives have been described. The presence of donor and acceptor moieties imparts electrooptical and NLO properties to these molecules. Their NLO properties have been studied by electric field poling as well as hyper-Rayleigh scattering techniques. Few of these compounds exhibited NLO activity comparable to that of quartz.

  已经描述了一些偶氮苯连接胆固醇衍生物的非线性光学（NLO）特性。供体和受体分子的存在赋予了这些分子电光和 NLO 特性。通过电场极化和超瑞利散射技术对它们的 NLO 特性进行了研究。这些化合物中只有少数表现出与石英相当的 NLO 活性。
• The Initial and Photoinduced 3D Orientational Order in Polymethacrylates with Azobenzene Side Groups
  作者：O. Yaroshchuk、T. Bidna、O. Nadtoka、L. Olkhovyk、V. Syromyatnikov、L. C. Chien

  DOI：10.1080/15421400590954353

  日期：2005.6.1

  The combination of the transmission null ellipsometry and total absorption method, earlier approved for several polymer classes, is applied to study 3D orientational configurations of azachromophores in polymethacrylates with azobenzene side groups. The transformation of the initial orientation due to the photoexcitation of azoehromophores is investigated. The dependence of the orientational configuration on the structure of azochromophore fragments and its concentration in the polymers are also studied. In the non-irradiated films, azochromofores strive to be aligned normally to the film plate. Under irradiation, if reorientation mechanism of the photoinduced ordering prevails, the azochromophores reorient perpendicularly to the polarization direction of the exciting light, E-ex, and in the saturation state they are randomly distributed in the plane perpendicular to E-ex This implies that the induced structure is mainly influenced by the photoordering, while selfordering of polymer chains is not effective or overcome, presumably because of high T-g of polymethacrylates. In case when photoselection ordering mechanism dominates, 3D distribution of azochromophores in the saturation state of irradiation is isotropic due to a strong exhaustion of the number of anisotropic trans isomers. The transient photoinduced orientations are biaxial independently on the dominating ordering mechanism. The reduction of the azochromophore's concentration in polymers reduces the anisotropy rate but not influence the trends described above. The observed regularities were earlier described for several other classes of photosensitive polymers and so they may be common rules for photoordering in the photochromic media.
• Synthesis and Photoswitching Properties of Some Cholesterol Based Liquid Crystals
  作者：Mathew George、V. Ajay Mallia、P. K. Sudhadevi Antharjanam、M. Saminathan、Suresh Das

  DOI：10.1080/10587250008025238

  日期：2000.10.1

  The synthesis and photoswitching properties of some azobenzene linked cholesterol derivatives (3a-d and 5a,b) have been described. Thermal properties of these compounds were studied by differential scanning calorimetry (DSC) and polarizing optical microscopy (POM) techniques. Compounds 3a and 3b exhibit a Smectic A phase, whereas 3d and 5b exhibit Smectic A, TGB and cholesteric phases. Compounds 3c and 5a show a cholesteric mesophase. The presence of azobenzene moiety imparts photochromic properties to these compounds. Trans-cis photoisomerization of me azo-moiety in these compounds in eutectic mixtures consisting of cholesteryl oleyl carbonate, cholesteryl chloride and cholesteryl nonanoate was studied by irradiating at 355 nm. Irradiation of the thin films of these mixtures lead to trans-cis isomerization of the azobenzene chromophore present in the mixture which is accompanied by a large shift in the reflectance band resulting in visual changes in the colour of these films.