2-Pentacosa-10,12-diynylpropanedioic acid | 1260495-81-5

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 脂肪酰基
• 英文名称: 2-Pentacosa-10,12-diynylpropanedioic acid
• CAS: 1260495-81-5
• 化学式: C₂₈H₄₆O₄
• 分子量: 446.671
• InChiKey: NXJHXIJQTZOTMG-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  11
• 重原子数：
  32
• 可旋转键数：
  22
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.79
• 拓扑面积：
  74.6
• 氢给体数：
  2
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  2-Pentacosa-10,12-diynylpropanedioic acid 在 盐酸 、 溶剂黄146 作用下， 以 四氢呋喃 为溶剂， 反应 0.35h， 以100%的产率得到12,14-十七二炔酸
  参考文献：
  名称：

  Self-Assembled Nanotubes and Helical Tapes from Diacetylene Nonionic Amphiphiles. Structural Studies before and after Polymerization

  摘要：

  We synthesized new amphiphiles comprised of a single diacetylenic chain and an oligoethylenoxide polar chain linked by an amide bond. In aqueous medium, they are not soluble at room temperature but form weak gels. Electron microscopy studies have shown that they self-assemble into helical tapes or nanotubes with lengths of several micrometers, and inner and outer diameters of 50 +/- 1 and 59 +/- 1 nm, respectively. The wall has a thickness of 10 +/- 1 nm for both kinds of objects and has an amphiphile bilayer structure. The hydrophobic chains are ordered, and the amide groups are linked with each other by H-bonds. The dissociation of the tubes is a first-order transition with an enthalpy of ca. 40 kJ mol(-1). The nanotubes were photopolymerized to yield purple solutions consisting of helical tapes and almost flat ribbons. The polymers exhibit irreversible thermochromism upon heating.

  DOI：

  10.1021/la202162q

文献信息

• Self-Assembled Nanotubes and Helical Tapes from Diacetylene Nonionic Amphiphiles. Structural Studies before and after Polymerization
  作者：Aurélia Perino、Marc Schmutz、Stéphane Meunier、Philippe J. Mésini、Alain Wagner

  DOI：10.1021/la202162q

  日期：2011.10.4

  We synthesized new amphiphiles comprised of a single diacetylenic chain and an oligoethylenoxide polar chain linked by an amide bond. In aqueous medium, they are not soluble at room temperature but form weak gels. Electron microscopy studies have shown that they self-assemble into helical tapes or nanotubes with lengths of several micrometers, and inner and outer diameters of 50 +/- 1 and 59 +/- 1 nm, respectively. The wall has a thickness of 10 +/- 1 nm for both kinds of objects and has an amphiphile bilayer structure. The hydrophobic chains are ordered, and the amide groups are linked with each other by H-bonds. The dissociation of the tubes is a first-order transition with an enthalpy of ca. 40 kJ mol(-1). The nanotubes were photopolymerized to yield purple solutions consisting of helical tapes and almost flat ribbons. The polymers exhibit irreversible thermochromism upon heating.