12,14-二十五二炔酸 | 101216-59-5

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 脂肪酰基
• 中文名称: 12,14-二十五二炔酸
• 英文名称: 12,14-pentacosadiynoic acid
• 英文别名: pentacosa-12,14-diynoic acid
• CAS: 101216-59-5
• 化学式: C₂₅H₄₂O₂
• 分子量: 374.607
• InChiKey: WGUBUTPKAGTFAB-UHFFFAOYSA-N

物化性质

• 熔点：
  52-54 °C
• 沸点：
  522.8±23.0 °C(Predicted)
• 密度：
  0.930±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  9.4
• 重原子数：
  27
• 可旋转键数：
  19
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.8
• 拓扑面积：
  37.3
• 氢给体数：
  1
• 氢受体数：
  2

反应信息

• 作为产物：
  描述：

  1-碘癸烷 在 盐酸 、 重铬酸吡啶 、 正丁基锂 作用下， 以 甲醇 、 N,N-二甲基甲酰胺 为溶剂， 反应 3.0h， 生成 12,14-二十五二炔酸
  参考文献：
  名称：

  Synthesis of photopolymerizable long-chain conjugated diacetylenic acids and alcohols from butadiyne synthons

  摘要：

  DOI：

  10.1021/jo00025a045

文献信息

• Reversible Color Changes in Lamella Hybrids of Poly(diacetylenecarboxylates) Incorporated in Layered Double Hydroxide Nanosheets
  作者：Toshio Itoh、Tetsuya Shichi、Tatsuto Yui、Hiroki Takahashi、Yoshihisa Inui、Katsuhiko Takagi

  DOI：10.1021/jp045410e

  日期：2005.3.1

  The present study is an investigation of a reversible thermal color change induced in lamella hybrids of poly(diacetylenecarboxylates) incorporated in layered double hydroxide (LDH) nanosheets. These poly-[m,n]/ LDH hybrids prepared by the photo- or gamma-ray-induced polymerization of diacetylenecarboxylates, i.e., CH3-(CH2)(m-1) CdropC-CdropC(CH2)(n-1)CO2- (mono-[m,n]), and intercalated in LDH lamella sheets, were observed to develop colors ranging from yellow to blue. The change in color was found to depend greatly on the alkyl carbon numbers of the mono-[m,n] (m,n = 10, 11; 5,11; 10,5; 16, 1) values. Moreover, the conformational alignment of the mono-[m,n] within the LDH was observed to be a crucial factor in color development, which was greatly affected by the intercalation degrees and extent of poly(ene-yne) linkage elongation of the polymers. For the poly-[m,n]/LDH hybrids investigated, a reversible color change was found to occur repeatedly and remarkably for the poly- [10,11]/LDH hybrid. This color change occurred at temperatures between ca. 20 and 80 degreesC back and forth from purple red to bright orange, in stark contrast to the irreversible color change for poly-[10,11] without LDH. Moreover, DSC and Raman spectroscopic studies of the LDH hybrids showed that the thermochromic temperature corresponded to the phase transition temperature of 80 degreesC. XRD analysis also indicated that the poly-[m,n]/LDH hybrid could retain its lamella structure during such thermochromic color changes, enabling conformational recovery in the polymer chains by a cooling down of the hybrids to temperatures lower than the transition temperature, while the nonhybrid poly-[10,11] powders exhibited an irreversible color change at 60 degreesC, above which the polymer powder turned amorphous.
• Singh, Alok; Schnur, Joel M., Synthetic Communications, 1986, vol. 16, # 7, p. 847 - 852
  作者：Singh, Alok、Schnur, Joel M.

  DOI：——

  日期：——
• SINGH, ALOK;SCHNUR, J. M., SYNTH. COMMUN., 1986, 16, N 7, 847-852
  作者：SINGH, ALOK、SCHNUR, J. M.

  DOI：——

  日期：——
• PROCESSLESS DIACETYLENIC SALT FILMS CAPABLE OF DEVELOPING A BLACK IMAGE
  申请人：ISP INVESTMENTS INC.

  公开号：EP0900409A1

  公开（公告）日：1999-03-10
• EP0900409A4
  申请人：——

  公开号：EP0900409A4

  公开（公告）日：2000-06-28