| 摘要 |
Disclosed is a liquid crystal composition suitable for producing a liquid crystal electrooptical element which can be driven at a low voltage in a wide temperature range and has high display quality. Also disclosed is a liquid crystal electrooptical element produced by using the liquid crystal composition. Further disclosed is a liquid crystal compound represented by the formula [R 1 -(A 1 ) a -Z 1 -(A 2 ) b -Z 2 -(A 7 ) e -Z 5 -A 3 -CF=CFCF 2 O-A 4 -Z 3 -(A 5 ) c -Z 4 -(A 6 ) d -R 2 ] . In the formula, R 1 and R 2 independently represent a hydrogen atom, a halogen atom, -CN, -NCS, -SF 5 , or an alkyl group containing 1 to 18 carbon atoms; A 1 , A 2 , A 3 , A 4 , A 5 , A 6 and A 7 independently represent trans-1,4-cyclohexylene group, 1,4-cyclohexenylene group, 1,3-cyclobutylene group, 1,2-cyclopropylene group, naphthalene-2,6-diyl group, 1,2,3,4-tetrahydronaphthalene-2,6-diyl group, decahydronaphthalene-2,6-diyl group, or 1,4-phenylene group; Z 1 , Z 2 , Z 3 , Z 4 , and Z 5 independently represent a single bond, an alkylene group containing 1 to 4 carbon atoms; and a, b, c, d, and e independently represent 0 or 1 with the proviso that 0 ‰¤ a+b+c+d+e ‰¤ 3. |
