1-(4-乙基苯基)-2-氟-4-(4-甲基苯基)苯 | 95759-41-4

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 中文名称: 1-(4-乙基苯基)-2-氟-4-(4-甲基苯基)苯
• 英文名称: 4-Ethyl-2'-fluoro-4''-methyl-[1,1';4',1'']terphenyl
• 英文别名: 1-(4-Ethylphenyl)-2-fluoro-4-(4-methylphenyl)benzene
• CAS: 95759-41-4
• 化学式: C₂₁H₁₉F
• 分子量: 290.38
• InChiKey: KVEZYNBWTVBAJC-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  6.4
• 重原子数：
  22
• 可旋转键数：
  3
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.14
• 拓扑面积：
  0
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为产物：
  描述：

  4-溴-2-氟联苯 在 1,3-bis[(diphenylphosphino)propane]dichloronickel(II) 三乙基硅烷 、 三氯化铝 作用下， 以 四氢呋喃 、 三氟乙酸 为溶剂， 反应 42.5h， 生成 1-(4-乙基苯基)-2-氟-4-(4-甲基苯基)苯
  参考文献：
  名称：

  Chan, L. K. M.; Gray, G. W.; Lacey, D., Molecular Crystals and Liquid Crystals (1969-1991), 1988, vol. 158, p. 209 - 240

  摘要：

  DOI：

文献信息

• Liquid crystal compositon and liquid crystal display device
  申请人：Chisso Corporation

  公开号：EP1908814A1

  公开（公告）日：2008-04-09

  A liquid crystal composition having a nematic phase that includes three components, wherein the first component is at least one compound selected from the group of compounds represented by formulas (1-1) and (1-2), the second component is at least one compound selected from the group of compounds having a group represented by formula (2), and the third component is at least one compound selected from the group of compounds represented by formulas (3-1) and (3-2): wherein R1 and R4 are each independently alkyl having 1 to 12 carbons, alkoxy having 1 to 12 carbons, alkenyl having 2 to 12 carbons, or alkenyl having 2 to 12 carbons in which arbitrary hydrogen is replaced by fluorine; ring A is independently 1,4-cyclohexylene, 1,3-dioxane-2,5-diyl, 1,4-phenylene, 3-fluoro-1,4-phenylene, 3,5-difluoro-1,4-phenylene, or 2,5-pyrimidine; ring B, ring C, ring D and ring F are each independently 1,4-cyclohexylene or 1,4-phenylene; ring E is 1,4-cyclohexylene, 1,4-phenylene or 3-fluoro-1,4-phenylene; Z1 is a single bond, ethylene, carbonyloxy, or difluoromethyleneoxy; X1 and X2 are each independently hydrogen or fluorine; Y is fluorine, chlorine or trifluoromethoxy; n is 1, 2, or 3; and p is 0 or 1.

  一种具有向列相的液晶组合物，包括三个组分，其中第一组分是从式（1-1）和（1-2）所代表的化合物组中选出的至少一种化合物，第二组分是从具有式（2）所代表的化合物组中选出的至少一种化合物，第三组分是从式（3-1）和（3-2）所代表的化合物组中选出的至少一种化合物： 其中 R1 和 R4 各自独立地为具有 1 至 12 个碳原子的烷基、具有 1 至 12 个碳原子的烷氧基、具有 2 至 12 个碳原子的烯基或具有 2 至 12 个碳原子的烯基，其中任意的氢被氟取代；环 A 独立地为 1,4-环己烯、1,3-二氧六环-2,5-二基、1,4-亚苯基、3-氟-1,4-亚苯基、3,5-二氟-1,4-亚苯基或 2,5-嘧啶；环 B、环 C、环 D 和环 F 各自独立地为 1,4-环己烯或 1,4-亚苯基；环 E 为 1,4-环己烯、1,4-亚苯基或 3-氟-1,4-亚苯基；Z1 为单键、乙烯、碳酰氧基或二氟亚乙基氧基；X1 和 X2 各自独立地为氢或氟；Y 为氟、氯或三氟甲氧基；n 为 1、2 或 3；p 为 0 或 1。
• COMPOSITION AND LIQUID CRYSTAL DISPLAY ELEMENT USING SAME
  申请人：DIC Corporation

  公开号：EP3045512A1

  公开（公告）日：2016-07-20

  A composition exhibits a liquid crystal phase over a wide temperature range, has low viscosity, good low-temperature solubility, and high resistivity and voltage holding ratio, and is stable against heat and light. When this composition is used, IPS or TN-mode liquid crystal display devices that have good display quality and suffer less display failures such as image-sticking and drop marks are produced in high yields. Provided is a composition containing one or more compounds represented by general formula (M-1), one or more compounds represented by general formula (M-3), and one or more compounds represented by general formula (M-4). A liquid crystal display device using the composition is also provided.

  一种组合物在很宽的温度范围内呈现液晶相，具有低粘度、良好的低温溶解性、高电阻率和电压保持比，并且对热和光稳定。使用这种组合物可生产出显示质量好、图像粘连和滴痕等显示故障少的 IPS 或 TN 模式液晶显示设备，产量高。 本发明提供了一种含有通式（M-1）代表的一种或多种化合物、通式（M-3）代表的一种或多种化合物和通式（M-4）代表的一种或多种化合物的组合物。还提供了一种使用该组合物的液晶显示装置。
• LIQUID-CRYSTAL COMPOSITION AND LIQUID-CRYSTAL DISPLAY ELEMENT OBTAINED USING SAME
  申请人：DIC Corporation

  公开号：EP3173457A1

  公开（公告）日：2017-05-31

  There is provided a liquid crystal composition containing at least one compound represented by General Formula (a). There is also provided a liquid crystal display device using such a liquid crystal composition. The liquid crystal composition of the present invention has the following properties without suffering reductions in refractive index anisotropy (Δn) and nematic phase-isotropic liquid phase transition temperature (Tni): sufficiently low viscosity (η), sufficiently low rotational viscosity (γ1), a large elastic constant (K33), a high voltage holding ratio after UV exposure (VHR (UV)), and a negative dielectric anisotropy (Δε) with a large absolute value. A liquid crystal display device of, for example, a VA type that uses such a liquid crystal composition has a high response speed and excellent display quality with defective display being eliminated or reduced.

  本发明提供了一种液晶组合物，其中至少含有一种通式（a）所代表的化合物。还提供了一种使用这种液晶组合物的液晶显示设备。本发明的液晶组合物在不降低折射率各向异性（Δn）和向列相各向异性液相转变温度（Tni）的情况下具有以下特性：足够低的粘度（η）、足够低的旋转粘度（γ1）、较大的弹性常数（K33）、紫外线照射后较高的电压保持率（VHR (UV)）以及绝对值较大的负介电各向异性（Δε）。使用这种液晶成分的 VA 型等液晶显示设备响应速度快，显示质量优异，可消除或减少显示缺陷。
• Liquid crystal composition and liquid crystal display device thereof
  申请人：JIANGSU HECHENG DISPLAY TECHNOLOGY CO., LTD.

  公开号：US10723947B2

  公开（公告）日：2020-07-28

  Provided is a liquid crystal composition, comprising: one or more compounds of general formula I accounting for 1-30% of the total weight of the liquid crystal composition; one or more compounds of general formula II accounting for 1-30% of the total weight of the liquid crystal composition; one or more compounds of general formula III accounting for 1-20% of the total weight of the liquid crystal composition; and one or more compounds of general formula IV accounting for 30-80% of the total weight of the liquid crystal composition. The liquid crystal composition has at least one of the following properties: a large specific resistance, a high voltage holding ratio, a suitable optical anisotropy, a large dielectric anisotropy, a small viscosity, a low threshold voltage, etc., and is also green and environmentally friendly. The liquid crystal composition is suitable for use in a liquid crystal display device, enabling the liquid crystal display device to have the following properties: a high voltage holding ratio, a short response time, a high contrast ratio, a low energy consumption, and being green and environmentally friendly, etc.

  本发明提供了一种液晶组合物，包括：一种或多种通式 I 的化合物，占液晶组合物总重量的 1-30%；一种或多种通式 II 的化合物，占液晶组合物总重量的 1-30%；一种或多种通式 III 的化合物，占液晶组合物总重量的 1-20%；以及一种或多种通式 IV 的化合物，占液晶组合物总重量的 30-80%。该液晶组合物至少具有以下一种特性：大比电阻、高电压保持比、适当的光学各向异性、大介电各向异性、小粘度、低阈值电压等，而且绿色环保。该液晶组合物适用于液晶显示设备，使液晶显示设备具有以下特性：高电压保持比、短响应时间、高对比度、低能耗、绿色环保等。
• [EN] LIQUID CRYSTAL COMPOSITION, LIQUID CRYSTAL DISPLAY ELEMENT, AND LIQUID CRYSTAL DISPLAY<br/>[FR] COMPOSITION DE CRISTAUX LIQUIDES, ÉLÉMENT D'AFFICHAGE À CRISTAUX LIQUIDES ET ÉCRAN À CRISTAUX LIQUIDES<br/>[ZH] 液晶组合物、液晶显示元件、液晶显示器
  申请人：SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIALS CO LTD

  公开号：WO2021253621A1

  公开（公告）日：2021-12-23

  本发明属于液晶材料技术领域，具体涉及一种负介电各向异性的液晶组合物及含有该液晶组合物的液晶显示元件或液晶显示器。本发明公开了一种负介电各向异性的液晶组合物，该液晶组合物包含式Ⅰ所示的液晶化合物以及一种或多种式Ⅱ所示的化合物。本发明的液晶组合物具有高的光学各向异性、高的清亮点和良好的热稳定性，包含本发明液晶组合物的液晶显示元件和液晶显示器具有较快的响应速度。