Conjugated compound, nitrogenated condensed-ring compound, nitrogenated condensed-ring polymer, organic thin film, and organic thin film element

The conjugated compound according to claim 2, wherein the group represented by formula (I) is a group represented by the following formula (III):

• wherein R1 and R2 have the same definitions as above, each R0 represents a hydrogen atom, a C1 to C20 alkyl group or a C1 to C20 alkoxy group, one of Z1 and Z1′ represents a group represented by the following formula (i) and the other represents any one of the groups represented by the following formulas (ii)-(ix), R3, R4, R5 and R6 each independently represent a hydrogen atom or a monovalent group, and R3 and R4 may bond together to form a ring;
• a plurality of the groups in R0 may be the same or different.

The conjugated compound according to claim 4, wherein the conjugated compound having two or more groups represented by formula (III) is a conjugated compound represented by the following formula (V):

• wherein R0, R1, R2, Z1 and Z1′ have the same definitions as above, Ar1, Ar2 and Ar3 each independently represent a C6 or greater divalent aromatic hydrocarbon or C4 or greater divalent heterocyclic group, which may have a substituent, with the proviso that the groups as a whole contain no fluorine atoms, and m, n and p each independently represent an integer of 0-6;
• a plurality of the groups in R0, R1, R2, Z1 and Z1′ may be the same or different.

A nitrogen-containing fused-ring compound represented by the following formula (α-I):

• in formula (α-I), R21 and R22 each independently represent a hydrogen atom, a halogen atom or an optionally substituted monovalent group, and Z21 and Z22 each independently represent any one of the groups represented by the following formulas (α-i)-(α-ix);
• wherein R23, R24, R25 and R26 each independently represent a hydrogen atom, a halogen atom or a monovalent group, and R23 and R24 may bond together to form a ring, the left side and the right side of the group represented by formula (α-viii) may be interchanged.

A nitrogen-containing fused-ring polymer having a repeating unit represented by the following formula (α-II):

• in formula (α-II), Z21 and Z22 each independently represent any one of the groups represented by the following formulas (α-i)-(α-ix);
• wherein R23, R24, R25 and R26 each independently represents a hydrogen atom, a halogen atom or a monovalent group, and R23 and R24 may bond together to form a ring;
• the left side and the right side of the group represented by formula (α-viii) may be interchanged.