4,4'-di-n-dodecylbiphenyl

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: 4,4'-di-n-dodecylbiphenyl
• 英文别名: 4,4'-didodecyl-1,1'-biphenyl；1-Dodecyl-4-(4-dodecylphenyl)benzene；1-dodecyl-4-(4-dodecylphenyl)benzene
• 化学式: C₃₆H₅₈
• 分子量: 490.857
• InChiKey: MDMYKBKXFMHGCT-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  16
• 重原子数：
  36
• 可旋转键数：
  23
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.67
• 拓扑面积：
  0
• 氢给体数：
  0
• 氢受体数：
  0

反应信息

• 作为产物：
  描述：

  4,4'-二溴联苯 、 溴代十二烷 在 magnesium 、 1,2-双(二苯基膦)乙烷氯化镍 作用下， 以 乙醚 、 四氢呋喃 为溶剂， 反应 14.0h， 以62%的产率得到4,4'-di-n-dodecylbiphenyl
  参考文献：
  名称：

  通过有机盐的封装在金属单壁碳纳米管中的带隙开口。

  摘要：

  带隙，被打开！紫精盐被封装在单壁碳纳米管（SWNT）中。这种封装将管的电子带隙从金属调整为高质量的半导体。

  DOI：

  10.1002/anie.201705258

文献信息

• Molecular Mechanism of Anomalous Increase in the Helical Pitch of Cholesteric Liquid Crystals Induced by Achiral Dopants
  作者：Masatoshi Kidowaki、Masaya Moriyama、Momoyo Wada、Nobuyuki Tamaoki

  DOI：10.1021/jp034916e

  日期：2003.11.1

  A dopant-induced anomalous increase in the helical pitch of dicholesteryl 10,12-docosadiynedioate 1 is explained by generation of smectic clusters in the cholesteric phase where the dopants act as promoters of smectic domains. The dopants, having a mesogenic core and the proper length of alkyl chains on both their molecular sides, such as 4,4'-dialkylazobenzenes, 4,4'-dialkylazoxybenzenes and 4,4'-dialkylbiphenyls, considerably increase the pitch. However, dopants having benzene or a binaphthyl structure in the molecular center, an alkyl chain at one side of the molecules and Z-isomers of azobenzene and azoxybenzene derivatives, slightly decrease the pitch by acting as impurities that decrease the transition temperature of the host. An X-ray diffraction study of the cholesterics revealed that the pitch increases with an increase in size and amount of the smectic domains induced by the appropriate dopants.
• Band-Gap Opening in Metallic Single-Walled Carbon Nanotubes by Encapsulation of an Organic Salt
  作者：Belén Nieto-Ortega、Julia Villalva、Mariano Vera-Hidalgo、Luisa Ruiz-González、Enrique Burzurí、Emilio M. Pérez

  DOI：10.1002/anie.201705258

  日期：2017.9.25

  Bandgap, be opened! Viologen salts were encapsulated within single-walled carbon nanotubes (SWNTs). This encapsulation tunes the electronic band gap of the tube from metallic to a high-quality semiconductor.

  带隙，被打开！紫精盐被封装在单壁碳纳米管（SWNT）中。这种封装将管的电子带隙从金属调整为高质量的半导体。