10,12-pentacosadiynoic acid cadmium salt

• 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: 10,12-pentacosadiynoic acid cadmium salt
• 英文别名: cadmium(II) 10,12-pentacosadiynate；cadmium 10,12-pentacosadiynoate
• 化学式: 2C₂₅H₄₁O₂*Cd
• 分子量: 859.609
• InChiKey: JUAMESYENVSEIX-UHFFFAOYSA-M

计算性质

• 辛醇/水分配系数(LogP)：
  6.17
• 重原子数：
  28.0
• 可旋转键数：
  18.0
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.8
• 拓扑面积：
  40.13
• 氢给体数：
  0.0
• 氢受体数：
  2.0

反应信息

• 作为产物：
  描述：

  10,12-二十五碳二炔酸 、 cadmium(II) chloride 在 potassium hydrogencarbonate 作用下， 以 水 为溶剂， 生成 10,12-pentacosadiynoic acid cadmium salt
  参考文献：
  名称：

  通过光聚合形成长链二炔酸衍生物的新绿色有组织分子膜及其近边 X 射线吸收精细结构 (NEXAFS) 光谱的结构研究

  摘要：

  使用 UV-vis 光谱、面外和面内 X 射线衍射 (XRD) 和偏光研究了退火后的分子排列对 Langmuir-Blodgett 薄膜中 10,12-戊二炔酸镉盐的光聚合的影响近边 X 射线吸收精细结构 (NEXAFS) 光谱。确定了具有扩展共轭体系的绿色聚合物膜的形成与膜结构有关。此外，C1s-π* 跃迁峰对具有扩展共轭系统的退火转移薄膜的入射角依赖性通过 C K 边缘偏振 NEXAFS 光谱得到证实，而在未退火多层薄膜上未观察到这种依赖性。此外，通过光聚合检测了多层无金属 10,12-pentacosadinynic 酸，并阐明了它们的薄膜结构。与预期相反，观察到红色聚合物薄膜随着 C1s-π* 跃迁的移动而形成高度有序的侧链取向......

  DOI：

  10.1021/jp049576r

文献信息

• Raman spectra of Langmuir–Blodgett and Langmuir–Schaefer films of polydiacetylene prepared from 10,12-pentacosadiynoic acid
  作者：Keisuke Seto、Yoshinobu Hosoi、Yukio Furukawa

  DOI：10.1016/j.cplett.2007.07.043

  日期：2007.8

  Blue polydiacetylene films were prepared from the Langmuir–Schaefer (LS) and Langmuir–Blodgett (LB) films of the cadmium salt of 10,12-pentacosadiynoic acid, CH3(CH2)11CCCC(CH2)8COOH, and the CC stretching modes of the Raman spectra of the LS and LB films were observed at 2068 and 2079 cm−1, respectively. These wavenumbers appeared to be sensitive to the packing of polymer chains. Most of the progression

  蓝色的聚二乙炔薄膜是由Langmuir-Schaefer（LS）和Langmuir-Blodgett（LB）薄膜制备的，该薄膜包含10,12-戊二醛酸，CH 3（CH 2）11 CCCC（CH 2）8 COOH的镉盐，以及LS和LB膜的拉曼光谱的CC拉伸模式分别在2068和2079cm -1处观察到。这些波数似乎对聚合物链的堆积敏感。在1332–1182 cm -1范围内观察到的大多数进展带已分配给（CH 2）11 CH 3的全反式结构的CH 2摆动模式。 团体。
• Surface-Enhanced Photopolymerization of a Diacetylene Derivative in Langmuir−Blodgett Films on a Silver Island Film
  作者：Eiji Shirai、Yoshie Urai、Koichi Itoh

  DOI：10.1021/jp980150k

  日期：1998.5.1

  Surface-enhanced resonance Raman scattering (SERRS) spectroscopy was applied to monitor the photopolymerization process of one monolayer (L = 1) of a Langmuir-Blodgett (LB) film of the cadmium salt of a diacetylene monocarboxylic acid derivative, 10,12-pentacosadiynoic acid (DA), prepared on an evaporated silver island film with a mass thickness of 60 Angstrom. The result indicated that the polymerization proceeds in a way that is similar to that of the multilayer LB films (L greater than or equal to 3) of DA prepared on a smooth silver substrate with a mass thickness of 1000 Angstrom, exhibiting a transition from a blue phase (lambda(max) approximate to 635 nm) to a red phase (lambda approximate to 540 nm). In addition, the photopolymerization on the SERS-active substrate with d = 60 Angstrom was found to proceed much faster than that on the smooth (SERS-inactive) substrate (d = 1000 Angstrom). The rate of the photopolymerization of the monolayer on the island film was compared with the rates of a series of LB films of DA prepared on evaporated silver films with d = 60-1000 Angstrom, including the DA Langmuir-Blodgett monolayer sample, into which the spacer layer of LB films of arachidic acid was inserted to control the separation distance between the reacting monolayer and the silver substrate (d = 60 Angstrom). On the basis of these results, we proposed that the enhanced photopolymerization is due to an accelerated propagation reaction (an addition reaction of DA to reactive polydiacetylene oligomers) resulting from an enhanced band-to-band transition of the oligomers caused by a strong coupling of the transition to the localized plasmon resonance of the substrates.