Compound having a triptycene moiety

A compound having a triptycene moiety represented by formula (1):

• wherein
• A1 and A2 each respectively represents —S—, —O—, —CO—, or —NR—;
• R represents a hydrogen atom or a substituted or non-substituted alkyl group;
• R1 and R3 each respectively represents a substituent selected from the monovalent group consisting of a substituted or non-substituted C1-15 linear aliphatic hydrocarbon group, substituted or non-substituted C3-15 branched aliphatic hydrocarbon group, substituted or non-substituted C3-15 cyclic aliphatic hydrocarbon group, substituted or non-substituted C6-15 aryl group, amino group, or a substituent forming by bonding the substituent selected from the monovalent group and one selected from the divalent group consisting of a substituted or non-substituted alkylene group, substituted or non-substituted arylene group, substituted or non-substituted ester group, carbonate ester group, ether group and any combinations of two or more selected from them;
• n is an integer from 0 to 2;
• R4 and R5 each respectively represents an electron-withdrawing group having a Hammett's substituent constant σp of equal to or more than 0;
• L11, L12, L21 and L22 each respectively represents a single bond or a divalent group selected from the group consisting of —O—, —S—, —S(═O)2—, —CO—, —COO—, —COO—, —OCOO— and —NRA— where RA represents a C1-7 alkyl group or hydrogen atom, —CH2— and any combinations thereof;
• Z1 and Z2 each respectively represents a divalent 5- or 6-membered cyclic linking group;
• R21 and R22 each respectively represents a hydrogen atom or substituted or non-substituted alkyl group;
• and
• m1 and m2 each respectively represents an integer of from 0 to 2.