| abstract |
PROBLEM TO BE SOLVED: To provide a novel liquid crystal compound exhibiting a large dielectric anisotropy and having relatively low viscosity, a liquid crystal composition containing the liquid crystal compound, and a liquid crystal display device. I do. SOLUTION: General formula (1) (Wherein, R 1 represents a hydrogen atom or an alkyl group having 1 to 15 carbon atoms, R 2 represents a hydrogen atom, a cyano group, a halogen atom or an alkyl group having 1 to 15 carbon atoms, and L represents a halogen atom. A 1 , A 2 , A 4 and A 5 each independently represent a trans-1,4-cyclohexylene group or a 1,4-phenylene group, and A 3 represents trans- Represents a 1,4-cyclohexylene group or the like, and Z 1 , Z 2 , Z 3 and Z 4 are each independently —COO—, —CH 2 CH 2 -, - CH 2 O-, or -CF 2 O-etc - indicates, Q Is -CF 2 CH 2 - or -CH 2 CF 2 - shows a, k, l, m and n each independently represent 0 or 1, and k + L + m + n ≦ 2. )). |