4-[11-[[[11-(4-Carboxyphenoxy)undecyl-dimethylsilyl]oxy-dimethylsilyl]oxy-dimethylsilyl]undecoxy]benzoic acid | 878044-55-4

• 分子结构分类: 有机化合物 - 有机金属化合物 - 有机类金属化合物
• 英文名称: 4-[11-[[[11-(4-Carboxyphenoxy)undecyl-dimethylsilyl]oxy-dimethylsilyl]oxy-dimethylsilyl]undecoxy]benzoic acid
• 英文别名: 4-[11-[[[11-(4-carboxyphenoxy)undecyl-dimethylsilyl]oxy-dimethylsilyl]oxy-dimethylsilyl]undecoxy]benzoic acid
• CAS: 878044-55-4
• 化学式: C₄₂H₇₂O₈Si₃
• 分子量: 789.285
• InChiKey: XEIPILHXBLXWKQ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  12.71
• 重原子数：
  53
• 可旋转键数：
  32
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.67
• 拓扑面积：
  112
• 氢给体数：
  2
• 氢受体数：
  8

反应信息

• 作为反应物：
  描述：

  2-ethylbutyl 4'-hydroxybiphenyl-4-carboxylate 、 4-[11-[[[11-(4-Carboxyphenoxy)undecyl-dimethylsilyl]oxy-dimethylsilyl]oxy-dimethylsilyl]undecoxy]benzoic acid 在 4-二甲氨基吡啶 、 N,N'-二环己基碳二亚胺 作用下， 以 二氯甲烷 为溶剂， 以62%的产率得到2-Ethylbutyl 4-[4-[4-[11-[[[11-[4-[4-[4-(2-ethylbutoxycarbonyl)phenyl]phenoxy]carbonylphenoxy]undecyl-dimethylsilyl]oxy-dimethylsilyl]oxy-dimethylsilyl]undecoxy]benzoyl]oxyphenyl]benzoate
  参考文献：
  名称：

  Low-Temperature and Wide Ferroelectric Phase in Mixtures of Chiral and Non-Chiral Tilted Smectic C-Type Liquid Crystals

  摘要：

  A new liquid crystal of siloxane dimer with an achiral swallow-tail, C11Si3C11, was synthesized and mixed with a chiral material of 4'-(1-butoxy-1-oxopropan-2-yloxy)biphenyl-4-yl 3-bromo-4-[9-(1,1,2,2,3,3,3-hepta-methyltrisiloxanyl)nonyloxy) benzoate, C9SiFLC, for the preparation of binary mixtures for the study. The mesophases under discussion were investigated by means of polarizing microscopy (POM), differential scanning calorimetry (DSC), X-ray diffraction (XRD), and electro-optical experiments. The influence of the mixture proportion of C9SiFLC on the occurrence of the chiral smectic C (SmC*) phase was investigated. Finally, the electro-optical properties of the SmC* phase, such as the tilt angle and switching behavior, were also measured.

  DOI：

  10.1080/15421406.2010.504507
• 作为产物：
  描述：

  对羟基苯甲酸苄酯 在 5% Pd(II)/C(eggshell) 、 氢气 、 三苯基膦 、 偶氮二甲酸二乙酯 作用下， 以 四氢呋喃 、 二氯甲烷 为溶剂， 反应 24.0h， 生成 4-[11-[[[11-(4-Carboxyphenoxy)undecyl-dimethylsilyl]oxy-dimethylsilyl]oxy-dimethylsilyl]undecoxy]benzoic acid
  参考文献：
  名称：

  Low-Temperature and Wide Ferroelectric Phase in Mixtures of Chiral and Non-Chiral Tilted Smectic C-Type Liquid Crystals

  摘要：

  A new liquid crystal of siloxane dimer with an achiral swallow-tail, C11Si3C11, was synthesized and mixed with a chiral material of 4'-(1-butoxy-1-oxopropan-2-yloxy)biphenyl-4-yl 3-bromo-4-[9-(1,1,2,2,3,3,3-hepta-methyltrisiloxanyl)nonyloxy) benzoate, C9SiFLC, for the preparation of binary mixtures for the study. The mesophases under discussion were investigated by means of polarizing microscopy (POM), differential scanning calorimetry (DSC), X-ray diffraction (XRD), and electro-optical experiments. The influence of the mixture proportion of C9SiFLC on the occurrence of the chiral smectic C (SmC*) phase was investigated. Finally, the electro-optical properties of the SmC* phase, such as the tilt angle and switching behavior, were also measured.

  DOI：

  10.1080/15421406.2010.504507

文献信息

• Low-Temperature and Wide Ferroelectric Phase in Mixtures of Chiral and Non-Chiral Tilted Smectic C-Type Liquid Crystals
  作者：Chien-Tung Liao、Zheng-Long Wu、Nien-Chieh Wu、Jung-Yo Liu、Ming-Hui Jiang、Sing-Fang Zou、Jiunn-Yih Lee

  DOI：10.1080/15421406.2010.504507

  日期：2010.12.1

  A new liquid crystal of siloxane dimer with an achiral swallow-tail, C11Si3C11, was synthesized and mixed with a chiral material of 4'-(1-butoxy-1-oxopropan-2-yloxy)biphenyl-4-yl 3-bromo-4-[9-(1,1,2,2,3,3,3-hepta-methyltrisiloxanyl)nonyloxy) benzoate, C9SiFLC, for the preparation of binary mixtures for the study. The mesophases under discussion were investigated by means of polarizing microscopy (POM), differential scanning calorimetry (DSC), X-ray diffraction (XRD), and electro-optical experiments. The influence of the mixture proportion of C9SiFLC on the occurrence of the chiral smectic C (SmC*) phase was investigated. Finally, the electro-optical properties of the SmC* phase, such as the tilt angle and switching behavior, were also measured.