| abstract |
compound represented by formula (I):n wherein R 1 represents an alkyl group having from 1 to 18 carbon atoms; R 2 represents an alkyl group having from 2 to 16 carbon atoms; rings A, B, C, and D each represents a 1,4-phenylene group or a 1,4-phenylene group having one or two halogen atoms; Y represents a single bond,n m and n each represents 0 or 1; p represents 0, 1, or 2; q represents 0 or an integer of from 1 to 6; and C * and C" each represents an asymmetric carbon atom in an (S)- or (R)-configuration, and a liquid crystal composition containing the compound of formula (I). The compound of formula (I) is a chiral liquid crystal compound exhibiting large spontaneous polarization, a long helical pitch, an SC * phase in a broad temperature range including room temperature, satisfactory orientation, and a high rate of response. |