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ALPHABETICAL SUMMARIES, FLESH CRYSTAL SUMMARIES AND FLESH CRYSTAL INSTRUCTIONS

机译:字母摘要,新鲜晶体摘要和新鲜晶体说明

摘要

Liquid crystalline compounds having a wide temperature range of liquid crystal phase, low viscosity, chemical stability, and excellent mutual solubility with other liquid crystal materials; liquid crystal compositions comprising the liquid crystalline compound; and liquid crystal display devices comprising the liquid crystal composition are provided; the liquid crystalline compound is expressed by the general formula (1) Ra-A1-Z1-A2-Z2-A3-Z3-A4-Rb wherein Ra represents an alkenyl group having 2 to 20 carbon atoms or an alkyl group having 1 to 20 carbon atoms any methylene group (-CH2-) in the alkenylene or alkyl group may be replaced by -O-, -S-, -CO-, -CH=CH-, or -C IDENTICAL C-, but in no case -O- and/or -S- continues, and any hydrogen atom in Ra may be replaced by a halogen atom; Rb represents Ra, a halogen atom, or cyano group provided that at least one of Ra and Rb represents a group having double bond; A1, A2, A3, and A4 independently represent trans-1,4-cyclohexylene group, 1,4-phenylene group any hydrogen atom on the ring may be replaced by fluorine atom or cyano group, cyclohexenediyl group, pyridine-2,5-diyl group, pyrimidine-2,5-diyl group, or 1,3-dioxane-2,5-diyl group; and Z1, Z2, and Z3 independently represent an alkenylene group having 2 to 4 carbon atoms, -(CH2)2-, -COO-, -OCO-, -C IDENTICAL C-, -CH2O-, -OCH2-, or single bond any hydrogen atom in the groups may be replaced by a halogen atom provided that at least one of Z1, Z2, and Z3 represents an alkenylene group having 2 to 4 carbon atoms.
机译:具有宽的液晶相温度范围,低粘度,化学稳定性和与其他液晶材料的互溶性优异的液晶化合物;包含该液晶化合物的液晶组合物;提供具有该液晶组合物的液晶显示装置。液晶化合物由通式(1)表示。Ra-A1-Z1-A2-Z2-A3-Z3-A4-Rb其中Ra表示具有2至20个碳原子的烯基或具有1至20个烷基的烷基烯基或烷基中任何亚甲基(-CH2-)的碳原子都可以被-O-,-S-,-CO-,-CH = CH-或-C相同的C-取代,但在任何情况下- O-和/或-S-继续,并且Ra中的任何氢原子可以被卤素原子取代; Rb表示Ra,卤素原子或氰基,只要Ra和Rb中的至少一个表示具有双键的基团即可; A1,A2,A3和A4独立地代表反式1,4-亚环己基,1,4-亚苯基。环上的任何氢原子都可以被氟原子或氰基,环己二烯基,-2,5-吡啶取代二基,嘧啶-2,5-二基或1,3-二恶烷-2,5-二基; Z 1,Z 2和Z 3独立地表示具有2-4个碳原子的亚烯基,-(CH 2)2-,-COO-,-OCO-,-C IDENTICAL C-,-CH 2 O-,-OCH 2-或单个键合基团中的任何氢原子可以被卤素原子取代,条件是Z1,Z2和Z3中的至少一个代表具有2-4个碳原子的亚烯基。

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