4-(3,4-Difluorophenyl)-3-fluorophenol | 205815-31-2

• 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-(3,4-Difluorophenyl)-3-fluorophenol
• CAS: 205815-31-2
• 化学式: C₁₂H₇F₃O
• 分子量: 224.18
• InChiKey: NHDRCHIPFWQOMM-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.5
• 重原子数：
  16
• 可旋转键数：
  1
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  20.2
• 氢给体数：
  1
• 氢受体数：
  4

文献信息

• FLUOROALKYLATED LIQUID-CRYSTAL COMPOUNDS, LIQUID-CRYSTAL COMPOSITIONS, AND LIQUID-CRYSTAL DISPLAY ELEMENTS
  申请人：CHISSO CORPORATION

  公开号：EP0950651A1

  公开（公告）日：1999-10-20

  The present invention provides liquid crystalline compounds having a very high voltage holding ratio, very little variation of these properties depending on temperature, high Δn, and good compatibility in the other liquid crystal materials particularly under a low temperature, liquid crystal compositions containing these crystalline compounds, and liquid crystal display devices constituted by using the liquid crystal compositions. The liquid crystalline compounds are represented by general formula (1): wherein R represents an alkyl, alkoxy or alkoxyalkyl group of 2-20 carbon atoms, and in each group, any 1-3 hydrogen atoms may be replaced by fluorine atoms; X shows an halogen atom or an alkyl group of 1-20 carbon atoms, any methylene groups (-CH2-) not adjacent each other in the alkyl group may be replaced by oxygen atoms, and any one or more hydrogen atoms in the alkyl group may be replaced by fluorine atoms; Z1, Z2 and Z3, each independently, represents -(CH2)2-, -(CH2)4-, -CH2O-, -OCH2-, -(CH2)3O-, -O(CH2)3- or a covalent bond; Y1-Y16 each independently represent hydrogen atoms or fluorine atoms, but at least two represent fluorine atoms; m represents 0 or 1, and any atom constituting the compound may be replaced by an isotope thereof.

  本发明提供的液晶化合物具有极高的电压保持率，这些特性随温度的变化极小，Δn高，特别是在低温下与其他液晶材料的兼容性好，提供含有这些液晶化合物的液晶组合物，以及使用这些液晶组合物构成的液晶显示装置。液晶化合物由通式（1）表示： 其中 R 代表 2-20 个碳原子的烷基、烷氧基或烷氧基烷基，在每个基团中，任意 1-3 个氢原子可被氟原子取代；X 表示卤素原子或 1-20 个碳原子的烷基，烷基中不相邻的亚甲基（-CH2-）可被氧原子取代，烷基中的任意一个或多个氢原子可被氟原子取代；Z1、Z2 和 Z3 各自独立地代表-( )2-、-( )4-、- O-、-O -、-( )3O-、-O( )3- 或共价键；Y1-Y16 各自独立地代表氢原子或氟原子，但至少有两个代表氟原子；m 代表 0 或 1，构成化合物的任何原子可由其同位素取代。
• Liquid crystal medium, optical device and liquid crystal compound
  申请人：JNC CORPORATION

  公开号：US10308870B2

  公开（公告）日：2019-06-04

  A liquid crystal medium that has stability to heat, light and so forth, a wide temperature range of a liquid crystal phase and significantly large dielectric anisotropy to develop an optically isotropic liquid crystal phase is required. Moreover, various optical devices that can be used in a wide temperature range, and have a short response time, a large contrast ratio and a low drive voltage are required. A liquid crystal composition contains an achiral component T containing at least one compound (1) represented by formula (1) and a chiral agent to develop an optically isotropic liquid crystal phase, wherein in formula (1), R1 is alkyl having 1 to 12 carbons, L1, L2 and L3 are each independently hydrogen, fluorine or chlorine; and Y1 is fluorine, CF3, or —OCF3.

  要求液晶介质对热、光等具有稳定性，液晶相的温度范围宽，介电各向异性大，以形成光学各向同性的液晶相。此外，还需要各种可在宽温度范围内使用的光学器件，并且响应时间短、对比度大、驱动电压低。一种液晶组合物含有一种非手性成分 T，其中至少含有一种由式（1）表示的化合物（1）和一种手性剂，以形成光学各向同性的液晶相，其中在式（1）中，R1 是具有 1 至 12 个碳原子的烷基，L1、L2 和 L3 各自独立地是氢、氟或氯；Y1 是氟、CF3 或 -O 。
• LIQUID CRYSTAL MEDIUM, OPTICAL DEVICE AND LIQUID CRYSTAL COMPOUND
  申请人：JNC CORPORATION

  公开号：US20160304784A1

  公开（公告）日：2016-10-20

  A liquid crystal medium that has stability to heat, light and so forth, a wide temperature range of a liquid crystal phase and significantly large dielectric anisotropy to develop an optically isotropic liquid crystal phase is required. Moreover, various optical devices that can be used in a wide temperature range, and have a short response time, a large contrast ratio and a low drive voltage are required. A liquid crystal composition contains an achiral component T containing at least one compound (1) represented by formula (1) and a chiral agent to develop an optically isotropic liquid crystal phase: (wherein, in formula (1), R 1 is alkyl having 1 to 12 carbons, L 1 , L 2 and L 3 are each independently hydrogen, fluorine or chlorine; and Y 1 is fluorine, for example).
• US6254941B1
  申请人：——

  公开号：US6254941B1

  公开（公告）日：2001-07-03