1,3-Difluoro-5-[2-(2-fluoro-4-methylphenyl)ethyl]-2-methylbenzene

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 二苯乙烯类
• 英文名称: 1,3-Difluoro-5-[2-(2-fluoro-4-methylphenyl)ethyl]-2-methylbenzene
• 英文别名: 1,3-difluoro-5-[2-(2-fluoro-4-methylphenyl)ethyl]-2-methylbenzene
• 化学式: C₁₆H₁₅F₃
• 分子量: 264.28
• InChiKey: MMPSWTLAJKBFBT-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.2
• 重原子数：
  19
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.25
• 拓扑面积：
  0
• 氢给体数：
  0
• 氢受体数：
  3

文献信息

• COMPOUND HAVING SATURATED SIX-MEMBERED RING AND ALKOXY GROUP OR ALKOXYALKYL GROUP, LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY ELEMENT
  申请人：JNC Corporation

  公开号：EP3260450A1

  公开（公告）日：2017-12-27

  Provided is a liquid crystal compound satisfying at least one of physical properties such as high stability to light or the like, a high clearing point, low minimum temperature of a liquid crystal phase, small viscosity, suitable optical anisotropy and large dielectric anisotropy, a liquid crystal composition containing the compound, and a liquid crystal display device including the composition. A compound is represented by formula (1). In formula (1), for example, R1 is alkyl having 1 to 12 carbons; ring A1, ring A2 and ring A3 are independently in which, X1 and X2 are independently -O- or -CH2-; Y1 is fluorine, -CF3 or -OCF3; Z1 and Z3 are independently a single bond, -CF2O- or -COO-; Z2 is a single bond, -CF2O- or -COO-; L1 and L2 are independently hydrogen or halogen; a is 0, 1, 2 or 3; and n1 and n2 are independently 0, 1 or 2.

  本发明提供了一种液晶化合物，该化合物至少满足以下物理特性中的一项：对光或类似物的高稳定性、高清澈点、液晶相的最低温度低、粘度小、适当的光学各向异性和较大的介电各向异性；一种含有该化合物的液晶组合物；以及一种包括该组合物的液晶显示设备。 一种化合物用式（1）表示。 例如，在式 (1) 中 R1 是具有 1 至 12 个碳原子的烷基； 环 A1、环 A2 和环 A3 分别独立 其中，X1 和 X2 独立地为-O-或-CH2-； Y1 是氟、-CF3 或 -O ； Z1 和 Z3 独立地为单键、-CF2O- 或 -COO-； Z2 是单键、-CF2O- 或 -COO-； L1 和 L2 独立地为氢或卤素； a 是 0、1、2 或 3；以及 n1 和 n2 独立地为 0、1 或 2。
• Liquid crystal composition and liquid crystal display element using same
  申请人：DIC CORPORATION

  公开号：US10208250B2

  公开（公告）日：2019-02-19

  Provided are a liquid crystal composition including at least one or more compounds represented by General Formula (i) and at least one or more compounds represented by General Formula (M-1), in which the dielectric constant anisotropy at 25° C. is larger than 0 and 5 or less; and a liquid crystal display element using this composition. The liquid crystal composition has a positive Δε, can have the electrical capacity of the liquid crystal layer (CLC) reduced to a low level, can be driven at a voltage that is practically sufficiently low, and satisfies at least any one of the requirements of maintaining a liquid crystal phase over a wider temperature range, low viscosity, satisfactory solubility at low temperature, high specific resistance or voltage retention rate, and stability to heat or light; and provide an excellent liquid crystal display element.

  提供了一种液晶组合物，其中包括至少一种或多种通式(i)表示的化合物和至少一种或多种通式(M-1)表示的化合物，该组合物在25℃时的介电常数各向异性大于0且小于5；还提供了一种使用该组合物的液晶显示元件。该液晶组合物具有正Δε，可将液晶层（CLC）的电容量降至较低水平，可在实际足够低的电压下驱动，并至少满足在较宽温度范围内保持液晶相、低粘度、在低温下具有令人满意的溶解性、高比电阻或电压保持率以及对热或光的稳定性等要求中的任一要求；并提供一种优异的液晶显示元件。
• Composition and liquid crystal display device using the same
  申请人：DIC CORPORATION

  公开号：US10414979B2

  公开（公告）日：2019-09-17

  An object of the present invention is to provide a composition that has positive Δε, exhibits a liquid crystal phase over a wide temperature range, has low viscosity, excellent solubility at low temperatures, and high resistivity and voltage holding ratio, and is stable against heat and light. By using this composition, IPS or TN liquid crystal display devices and the like that have excellent display quality and suppress display failures such as image-sticking and drop marks are provided in high yield. Provided is a composition that contains at least one selected from the group consisting of compounds represented by general formulae (i) and (ii) and at least one selected from compounds represented by general formula (iii). Moreover, a liquid crystal display device using the composition and an IPS or FFS device that uses the composition are provided.

  本发明的目的是提供一种组合物，该组合物具有正Δε，在宽温度范围内呈现液晶相，粘度低，低温溶解性好，电阻率和电压保持比高，并且对热和光稳定。通过使用这种组合物，可以提供高产量的 IPS 或 TN 液晶显示设备等，这些设备具有优异的显示质量，并能抑制图像粘连和掉落痕迹等显示故障。 本发明提供了一种组合物，该组合物含有至少一种从通式（i）和（ii）所代表的化合物组成的组中选出的化合物，以及至少一种从通式（iii）所代表的化合物中选出的化合物。此外，还提供了使用该组合物的液晶显示设备和使用该组合物的 IPS 或 FFS 设备。
• Liquid crystal composition and liquid crystal display device including the same
  申请人：DIC CORPORATION

  公开号：US10633590B2

  公开（公告）日：2020-04-28

  The present application provides a liquid crystal composition with high dielectric constant anisotropy and a low viscosity, and to provide a liquid crystal display device with high contrast, high-speed responsivity, high light fastness, and high display quality without image sticking and display defects. The liquid crystal composition contains one or two or more compounds represented by the general formula (I). The liquid crystal composition is of great practical use as a liquid crystal composition for use in liquid crystal displays and is effective for high contrast, high-speed response, and high quality reliability.

  本申请提供一种具有高介电常数各向异性和低粘度的液晶组合物，并提供一种具有高对比度、高速响应性、高耐光性和高显示质量且无图像粘连和显示缺陷的液晶显示设备。该液晶组合物含有一种或两种以上由通式（I）表示的化合物。该液晶组合物作为用于液晶显示器的液晶组合物具有很大的实用价值，可有效实现高对比度、高速响应和高质量可靠性。
• 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。