摘要:
A novel smectic C liquid crystal compound useful as a component of ferroelectric liquid crystal materials capable of effecting high-speed response is provided, which compound is a smectic liquid crystalline 5-alkoxy-2-(4-alkylphenyl)pyrimidine compound expressed by the formula wherein R¹ represents a linear alkyl group of 4 to 20 carbon atoms and R² represents a linear alkyl group of 7 to 20 carbon atoms.
摘要:
An optically active compound exhibiting high speed response properties when used as a component of liquid crystal materials used in a liquid crystal display mode utilizing ferroelectricity, and a liquid crystal composition containing the compound are provided, which compund is expressed by the formula wherein R¹ represents alkyl, alkoxy or alkoxycarbonyl each of 2 to 18 C, R² represents alkyl of 3 to 18C or alkoxy of 1 to 18C and A represents a member selected from a group of two directly bonded six-membered rings having a halogen atom, cyano group, methyl group or trifluoromethyl group attached thereonto and * represents an unsymmetric carbon atom.
摘要:
Optically active compound for use in liquid crystal compositios provided with suitable characteristics, have the formula: in which R¹ and R² are each a C₁-C₂₀ alkyl group or C₁-C₂₀ alkoxy group or a hydrogen atom; ℓ , m and n are each 0 or 1; X is a fluorine, chlorine or bromine atom or a cyano group, and the group are each independently a group (in which Y is hydrogen or halogen atom or a cyano group).