Patent ID: 6849202

Claim:
A compound represented by the formula (2) having a phenylacetylene structure: wherein A 9 to A 12 each independently stands for a hydrogen atom, a fluorine atom, an alkyl or alkoxy group having 1 to 10 carbon atoms optionally substituted with at least one fluorine atom; P 3 and P 4 each stands for the formula (2-1) or (2-2), with at least one of P 3 and P 4 standing for the formula (2-1), wherein A 37 to A 42 in the formula (2-1) and A 5 to A 8 in the formula (2-2) each independently stands for a hydrogen atom, a fluorine atom, or an alkyl or alkoxy group having 1 to 10 carbon atoms optionally substituted with at least one fluorine atom; R 11 and R 12 each independently stands for a hydrogen atom, a fluorine atom, a cyano group, —SF5, —NCS, a 4-R 23 -(cycloalkyl) group, a 4-R 23 -(cycloalkenyl) group, an R 24 —(O)q group, or a group represented by the formula (3), wherein R 23 stands for a hydrogen atom, or a straight or branched alkyl group having 1 to 12 carbon atoms optionally substituted with at least one fluorine atom, R 24 stands for a straight or branched alkyl group having 1 to 12 carbon atoms optionally substituted with at least one fluorine atom, or a straight or branched alkenyl or alkynyl group having 3 to 12 carbon atoms optionally substituted with at least one fluorine atom, q denotes 0 or 1, wherein n denotes 0 or 1, and m denotes an integer of 1 to 20, B 1 stands for a hydrogen atom or a methyl group, when both R 11 and R 12 stand for a group represented by the formula (3), n, m, and B 1 in one group of the formula (3) may be the same as or different from those of the other.