Patent ID: 8841410

Claim:
A nitrogen-containing condensed ring compound having a structural unit represented by the following formula (1-1) or a structural unit represented by the following formula (1-2): wherein, in the formulae (1-1) and (1-2), Ar 1 represents an aromatic ring containing 4 or more carbon atoms and optionally having a substituent, one of Y 1 and Y 2 represents a single bond, and the other represents a group represented by —C(R 11 )(R 12 )— or a group represented by —C(═X 1 )—; one of Y 3 and Y 4 represents a single bond, and the other represents a group represented by —C(R 21 )(R 22 )— or a group represented by —C(═X 2 )—, wherein R 11 , R 12 , R 21 and R 22 each independently represent a hydrogen atom, a halogen atom, a monovalent group containing an alkane skeleton, or a cyano group, and at least one of Y 1 , Y 2 , Y 3 and Y 4 is a group represented by —C(R 11 )(R 12 )— or a group represented by —C(R 21 )(R 22 )—, wherein at least one of R 11 and R 12 and/or at least one of R 21 and R 22 are/is a monovalent group containing an alkane skeleton, and X 1 and X 2 each independently represent an oxygen atom, a sulfur atom, or a group represented by ═C(A) 2 , wherein A represents a hydrogen atom, a halogen atom, or a monovalent group, and a plurality of A may be identical to or different from each other, W 1 and W 2 each independently represent a group represented by —C(R 00 )— or a group represented by N, and at least one of W 1 and W 2 is a group represented by N, and R 00 represents a hydrogen atom, a halogen atom, or a monovalent group, and Z 1 and Z 2 each independently represent a group represented by the formula (i), a group represented by the formula (ii), a group represented by the formula (iii), a group represented by the formula (iv), a group represented by the formula (v), a group represented by the formula (vi), a group represented by the formula (vii), a group represented by the formula (viii), or a group represented by the formula (ix), wherein the group represented by the formula (vii) and the group represented by the formula (viii) may be flipped horizontally, wherein, in the formula (vii), the formula (viii) and the formula (ix), R 3 , R 4 , R 5 and R 6 each independently represent a hydrogen atom, a halogen atom, or a monovalent group, and R 3 and R 4 may bind to each other to form a ring together with carbon atoms to which they bind.