Malonic acid bis-(2-{2-[4-(4-cyano-phenylazo)-phenoxy]-ethoxy}-ethyl) ester | 315181-51-2

• 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: Malonic acid bis-(2-{2-[4-(4-cyano-phenylazo)-phenoxy]-ethoxy}-ethyl) ester
• 英文别名: Bis[2-[2-[4-[(4-cyanophenyl)diazenyl]phenoxy]ethoxy]ethyl] propanedioate；bis[2-[2-[4-[(4-cyanophenyl)diazenyl]phenoxy]ethoxy]ethyl] propanedioate
• CAS: 315181-51-2
• 化学式: C₃₇H₃₄N₆O₈
• 分子量: 690.712
• InChiKey: MBAWWNVMVLOCRD-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  6.2
• 重原子数：
  51
• 可旋转键数：
  22
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.24
• 拓扑面积：
  187
• 氢给体数：
  0
• 氢受体数：
  14

反应信息

• 作为产物：
  描述：

  丙二酰氯 、 4-{4-[2-(2-Hydroxy-ethoxy)-ethoxy]-phenylazo}-benzonitrile 反应 48.0h， 以46%的产率得到Malonic acid bis-(2-{2-[4-(4-cyano-phenylazo)-phenoxy]-ethoxy}-ethyl) ester
  参考文献：
  名称：

  含对氰基偶氮苯的聚丙二酸酯中光致各向异性快速弛豫的新机制

  摘要：

  在侧链液晶 (LC) 聚丙二酸酯 (PCN) 中研究了光致各向异性的弛豫行为。在弛豫过程中，在垂直于记录光束偏振的泵浦光束被照射后，观察到衰减过程中的异常现象，即诱导双折射的增加。这很难使用现有模型、热顺反异构化或弛豫过程的自由体积效应来解释。我们建议考虑聚合物薄膜中侧链和主链之间的弹性力的新模型。根据我们的模型，主链可以与侧链一起重新定向，快速松弛与弹性力有关。

  DOI：

  10.1063/1.1315996

文献信息

• Novel mechanism of fast relaxation of photo-induced anisotropy in a poly(malonic esters) containing<i>p</i>-cyanoazobenzene
  作者：Won-Jae Joo、Hee-Deuk Shin、Cha-Hwan Oh、Seok-Ho Song、Pill-Soo Kim、Bong-Soo Ko、Yang-Kyoo Han

  DOI：10.1063/1.1315996

  日期：2000.11.15

  The relaxation behavior of photo-induced anisotropy has been investigated in a side-chain liquid crystalline(LC) poly(malonic ester) (PCN). Abnormal phenomenon, increment of the induced birefringence, in decaying process was observed just after the pumping beam polarized perpendicularly to the recording beam was illuminated in the relaxation process. This is difficult to explain using the present models

  在侧链液晶 (LC) 聚丙二酸酯 (PCN) 中研究了光致各向异性的弛豫行为。在弛豫过程中，在垂直于记录光束偏振的泵浦光束被照射后，观察到衰减过程中的异常现象，即诱导双折射的增加。这很难使用现有模型、热顺反异构化或弛豫过程的自由体积效应来解释。我们建议考虑聚合物薄膜中侧链和主链之间的弹性力的新模型。根据我们的模型，主链可以与侧链一起重新定向，快速松弛与弹性力有关。
• Photoinduced Birefringence in Poly(malonic ester) Containing <i>p</i>-Cyanoazobenzene with Photoexcitation of cis Conformer
  作者：Won-Jae Joo、Cha-Hwan Oh、Seok-Ho Song、Pill-Soo Kim、Yang-Kyoo Han

  DOI：10.1021/jp0102825

  日期：2001.9.1

  Photoinduced birefringence in a poly(malonic ester) containing two symmetrical p-cyanoazobenzene groups has been investigated using two pumping beams with different wavelengths of 365 and 488 nm,. which are assignable to the absorption wavelengths of trans and cis conformers of azobenzene, respectively. We observed unexpected photoinduced birefringence even by the pumping beam of 488 nm as large as that by 365 run. To describe such specific phenomenon, we measured the magnitude and direction of the induced birefringence. by means of a new experimental setup, adding lambda /4 waveplate between the polymer film and the analyzer of conventional a pair of crossed polarizers setup. The measurement of the photoinduced phase retardation by simultaneous illumination with two perpendicularly polarized beams of 365 and 488 nm supports the fact that there is another process for the photoinduced birefringence besides a typical trans-cis photoisomerization of azobenzene.
• Influence of the Backbone on Photoinduced Birefringence in a Poly(malonic ester) Containing <i>p</i>-Cyanoazobenzene
  作者：Won-Jae Joo、Cha-Hwan Oh、Yang-Kyoo Han

  DOI：10.1021/jp0144808

  日期：2002.5.30

  The influence of the backbone on the photoinduced birefringence was investigated in a poly(malonic ester) containing a p-cyanoazobenzene group as a side-chain. The photoinduced birefringence was successively measured in the fifteen cycles of the recording, relaxation, and erasing processes. The linearly polarized light, with a polarization direction of 45degrees relative to the analyzer, was used as the pumping beam during the first first five cycles, and the same pumping beam at negative 45degrees was used during the next 10 cycles. When the polarization direction of the pumping beam was changed perpendicularly, a very interesting birefringence curve was observed in the recording and relaxation processes, which could be well explained by our model considering the reorientation of the backbone caused by the elastic force between the backbone and side-chain. Consequently, we confirmed the fact that the relaxation behavior of the photoinduced birefringence is closely associated with the reorientation of the backbone.