1H,3H-Anthra[2,3-c:6,7-c']difuran-1,3,7,9-tetrone | 4430-56-2

• 分子结构分类: 有机化合物 - 苯类化合物 - 蒽
• 英文名称: 1H,3H-Anthra[2,3-c:6,7-c']difuran-1,3,7,9-tetrone
• 英文别名: 7,17-dioxapentacyclo[11.7.0.03,11.05,9.015,19]icosa-1(20),2,4,9,11,13,15(19)-heptaene-6,8,16,18-tetrone
• CAS: 4430-56-2
• 化学式: C₁₈H₆O₆
• 分子量: 318.2
• InChiKey: ZTNPXHCEYFUXNN-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.2
• 重原子数：
  24
• 可旋转键数：
  0
• 环数：
  5.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  86.7
• 氢给体数：
  0
• 氢受体数：
  6

文献信息

• LIQUID-CRYSTAL DISPLAY ELEMENT
  申请人：DIC Corporation

  公开号：EP3064991A1

  公开（公告）日：2016-09-07

  An object of the present invention is to provide a liquid-crystal display element using a liquid-crystal composition having negative dielectric anisotropy, capable of realizing excellent display characteristics by being used in an FFS mode liquid-crystal display element, without deteriorating various characteristics as a liquid-crystal display element such as dielectric anisotropy, viscosity, a nematic phase upper limit temperature, nematic phase stability at low temperatures, and γ1, and burn-in characteristics of a display element. A liquid-crystal display element containing at least one compound selected from the group consisting of compounds by the following General Formula (I) is provided: wherein each of R1 and R2 independently represents an alkyl group having 1 to 8 carbon atoms, an alkenyl group having 2 to 8 carbon atoms, an alkoxy group having 1 to 8 carbon atoms, or an alkenyloxy group having 2 to 8 carbon atoms, A represents a 1,4-phenylene group or a trans-1,4-cyclohexylene group, k represents 1 or 2, and in a case where k is 2, two A's may be the same as or different from each other.

  本发明的目的是提供一种使用具有负介电各向异性的液晶组合物的液晶显示元件，该液晶组合物能够通过用于全氟辛烷磺酸模式液晶显示元件而实现优异的显示特性，同时不会降低作为液晶显示元件的各种特性，例如介电各向异性、粘度、向列相上限温度、向列相在低温下的稳定性和γ1，以及显示元件的烧损特性。本发明提供了一种液晶显示元件，其中含有至少一种选自由以下通式（I）化合物组成的化合物组的化合物： 其中 R1 和 R2 各自独立地代表具有 1 至 8 个碳原子的烷基、具有 2 至 8 个碳原子的烯基、具有 1 至 8 个碳原子的烷氧基或具有 2 至 8 个碳原子的烯氧基，A 代表 1，4-亚苯基或反式-1，4-环己烯基，k 代表 1 或 2，在 k 为 2 的情况下，两个 A 可以相同或不同。
• Liquid-crystal display element
  申请人：DIC Corporation

  公开号：US10437107B2

  公开（公告）日：2019-10-08

  An object of the present invention is to provide a liquid-crystal display element using a liquid-crystal composition having negative dielectric anisotropy, capable of realizing excellent display characteristics by being used in a liquid-crystal display element provided with a photo-alignment film, without deteriorating various characteristics as a liquid-crystal display element such as dielectric anisotropy, viscosity, a nematic phase upper limit temperature, nematic phase stability at low temperatures, and γ1, and burn-in characteristics of a display element. A liquid-crystal display element using a liquid-crystal composition containing at least one compound selected from the group consisting of compounds represented by the following General Formula (I) is provided.

  本发明的目的是提供一种使用具有负介电各向异性的液晶组合物的液晶显示元件，该液晶组合物能够通过用于提供光对准膜的液晶显示元件而实现优异的显示特性，同时不会降低作为液晶显示元件的各种特性，例如介电各向异性、粘度、向列相上限温度、向列相在低温下的稳定性和γ1，以及显示元件的烧损特性。本发明提供了一种使用液晶组合物的液晶显示元件，该液晶组合物含有至少一种选自以下通式（I）所代表的化合物组成的化合物组的化合物。
• Polyimide resin, method of producing polyimide resin, and electrolyte membrane, catalyst layer, membrane/electrode assembly and device each containing polyimide resin
  申请人：Watanabe Masahiro

  公开号：US20070106057A1

  公开（公告）日：2007-05-10

  A polyimide resin having a basic skeleton represented by the following general formula: (in the formula (1), each of Ar 1 and Ar 2 is an aromatic ring having a carbon number of 6-20, which forms an imide ring of 5 or 6 atoms with an imide group adjoining thereto. In the aromatic ring, a part of carbon atoms may be substituted with S, N, 0, SO 2 or CO, or a part of hydrogen atoms may be substituted with an aliphatic group, a halogen atom or a perfluoro aliphatic group. Ar 1 and Ar 2 may be same or different. R is at least one of linear alkylene group and branched alkylene group having a carbon number of 1-20. Ar 3 is an aromatic ring having a carbon number of 6-20 in which at least a part of hydrogen atoms is substituted with at least one of sulfoalkoxy group, carboalkoxy group and phosphoalkoxy group having a carbon number of 1-20 and a part of carbon atoms in these groups may be substituted with S, N, 0, SO 2 or CO, or a part of hydrogen atoms may be substituted with an aliphatic group, a halogen atom or a perfluoro aliphatic group. n and m show a polymerization degree and are an integer of not less than 2.)
• POLYAMIC ACID AND A POLYIMIDE OBTAINED BY REACTING A DIANHYDRIDE AND A DIAMINE
  申请人：KILICKIRAN Pinar

  公开号：US20110109855A1

  公开（公告）日：2011-05-12

  A polyamic acid and a polyimide obtained by reacting a dianhydride and diamines. A substrate having a film of such polyimide or polyamic acid deposited thereon. A liquid crystal display containing a film of such polyimide as an alignment layer. A method for reducing the response times of a liquid crystal display and/or for improving the on-state- and off-state-transmission and/or the voltage holding ratio of a liquid crystal display, the method involving incorporating the polyimide as an alignment layer in the liquid crystal display. A method of producing a liquid crystal display involving depositing a film of the polyimide on a substrate.