2-phenylazo-3,4,5-trihydroxybenzoic acid | 1256629-42-1

• 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: 2-phenylazo-3,4,5-trihydroxybenzoic acid
• 英文别名: 3,4,5-Trihydroxy-2-phenyldiazenylbenzoic acid；3,4,5-trihydroxy-2-phenyldiazenylbenzoic acid
• CAS: 1256629-42-1
• 化学式: C₁₃H₁₀N₂O₅
• 分子量: 274.233
• InChiKey: DTDXRBHVMIOFPA-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.2
• 重原子数：
  20
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  123
• 氢给体数：
  4
• 氢受体数：
  7

反应信息

• 作为反应物：
  描述：

  2-phenylazo-3,4,5-trihydroxybenzoic acid 、 水 、 cobalt(II) chloride 以 氨 为溶剂， 生成 [Co(2-phenylazo-3,4,5-trihydroxybenzoic acid)(2-phenylazo-3,4,5-trihydroxybenzoic acid-H)Cl(H2O)]*2H2O
  参考文献：
  名称：

  Synthesis and spectroscopic characterization of gallic acid and some of its azo complexes

  摘要：

  A series of gallic acid and azo gallic acid complexes were prepared and characterized by elemental analysis, IR, electronic spectra and magnetic susceptibility. The complexes were of different geometries: Octahedral, Tetrahedral and Square Planar. ESR was studied for copper complexes. All of the prepared complexes were of isotropic nature. The thermal analyses of the complexes were studied by DTA and DSC techniques. The thermodynamic parameters and the thermal transitions, such as glass transitions, crystallization and melting temperatures for some ligands and their complexes were evaluated and discussed. The entropy change values, Delta S-#, showed that the transition states are more ordered than the reacting complexes. The biological activities of some ligands and their complexes are tested against Gram positive and Gram negative bacteria. The results showed that some complexes have a well considerable activity against different organisms. (C) 2012 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.molstruc.2012.01.041
• 作为产物：
  描述：

  苯胺 在 盐酸 、 sodium nitrite 作用下， 以 水 为溶剂， 生成 2-phenylazo-3,4,5-trihydroxybenzoic acid
  参考文献：
  名称：

  没食子酸及其偶氮衍生物及其铁（III）配合物的光谱研究

  摘要：

  偶氮没食子衍生物及其铁（III）配合物进行了合成和表征。配合物的立体化学和键合模式是基于元素分析，UV-Vis和IR得出的。研究了配合物的热行为。讨论了pH对没食子酸及其偶氮衍生物电子吸收光谱的影响。应用了不同的光谱方法（摩尔比，直线法，连续变化，斜率和连续法）来确定在水介质中没食子酸与铁（III）的复合形成的化学计量和p K值。没食子酸的铁（III）配合物以不同的比例形成：1：1、1：2、1：3和1：4（M：L）。

  DOI：

  10.1016/j.saa.2013.10.054

文献信息

• Synthesis and spectroscopic characterization of gallic acid and some of its azo complexes
  作者：Mamdouh S. Masoud、Sawsan S. Hagagg、Alaa E. Ali、Nessma M. Nasr

  DOI：10.1016/j.molstruc.2012.01.041

  日期：2012.4

  A series of gallic acid and azo gallic acid complexes were prepared and characterized by elemental analysis, IR, electronic spectra and magnetic susceptibility. The complexes were of different geometries: Octahedral, Tetrahedral and Square Planar. ESR was studied for copper complexes. All of the prepared complexes were of isotropic nature. The thermal analyses of the complexes were studied by DTA and DSC techniques. The thermodynamic parameters and the thermal transitions, such as glass transitions, crystallization and melting temperatures for some ligands and their complexes were evaluated and discussed. The entropy change values, Delta S-#, showed that the transition states are more ordered than the reacting complexes. The biological activities of some ligands and their complexes are tested against Gram positive and Gram negative bacteria. The results showed that some complexes have a well considerable activity against different organisms. (C) 2012 Elsevier B.V. All rights reserved.
• Spectroscopic studies on gallic acid and its azo derivatives and their iron(III) complexes
  作者：Mamdouh S. Masoud、Alaa E. Ali、Sawsan S. Haggag、Nessma M. Nasr

  DOI：10.1016/j.saa.2013.10.054

  日期：2014.2

  derivatives and their iron(III) complexes were synthesized and characterized. The stereochemistry and the mode of bonding of the complexes were achieved based on elemental analysis, UV–Vis and IR. The thermal behaviors of the complexes were studied. The effect of pH on the electronic absorption spectra of gallic acid and its azo derivatives are discussed. Different spectroscopic methods (molar ratio

  偶氮没食子衍生物及其铁（III）配合物进行了合成和表征。配合物的立体化学和键合模式是基于元素分析，UV-Vis和IR得出的。研究了配合物的热行为。讨论了pH对没食子酸及其偶氮衍生物电子吸收光谱的影响。应用了不同的光谱方法（摩尔比，直线法，连续变化，斜率和连续法）来确定在水介质中没食子酸与铁（III）的复合形成的化学计量和p K值。没食子酸的铁（III）配合物以不同的比例形成：1：1、1：2、1：3和1：4（M：L）。