| abstract |
This composition contains a compound represented by general formula (i) and a compound represented by general formula (ii). (In the formulae: R i1 , R ii1 , and R ii2 each independently represent an alkyl group having 1-8 carbon atoms; one or at least two non-neighboring -CH 2 - groups in the alkyl group may be each independently substituted with -CH=CH-, -C≡C-, -O-, -CO-, -COO-, or -OCO-; m i1 represents 2; A i1 represents a 1,4-cyclohexylene group or a 1,4-phenylene group of which a hydrogen atom may be substituted with a fluorine atom or a chlorine atoms, where the plurality of A i1 groups may be the same or different; Z i1 represents a single bond, -CH=CH-, -C≡C-, -CH 2 CH 2 -, -COO-, or -OCO-, where the plurality of Z i1 may be the same or different; and X i1 and X ii1 -X ii4 each independently represent a hydrogen atom or a fluorine atom.) |