Imide compound and optical recording media made by using the same

An optical recording medium containing at least one imide compound having a quinazoline-4-on residue represented by a general formula (9) as one of tautomeric structures:

• wherein a ring AR4 represents a substituted or unsubstituted aromatic ring residue or a residue formed by combining two or more aromatic ring residues via one or more linking groups;
• R9 represents hydrogen, substituted or unsubstituted alkyl, substituted or unsubstituted aralkyl, or substituted or unsubstituted aromatic ring;
• R901 to R904 each independently represent a hydrogen or halogen atom;
• a group selected from nitro, cyano, hydroxyl, mercapto, carboxyl, substituted or unsubstituted alkyl, substituted or unsubstituted aralkyl, substituted or unsubstituted aromatic ring, substituted or unsubstituted alkoxy, substituted or unsubstituted aralkyloxy, substituted or unsubstituted aryloxy, substituted or unsubstituted alkylthio, substituted or unsubstituted aralkylthio, substituted or unsubstituted arylthio, substituted or unsubstituted amino, substituted or unsubstituted acyl, substituted or unsubstituted acyloxy, substituted or unsubstituted alkoxycarbonyl, substituted or unsubstituted aralkyloxycarbonyl, substituted or unsubstituted aryloxycarbonyl, substituted or unsubstituted alkenyloxycarbonyl, substituted or unsubstituted aminocarbonyl, substituted or unsubstituted alkenyl, substituted or unsubstituted alkenyloxy, substituted or unsubstituted alkenylthio, substituted or unsubstituted heteroaryl, substituted or unsubstituted heteroaryloxy, substituted or unsubstituted heteroaryloxycarbonyl, heteroarylthio, or substituted or unsubstituted metallocenyl;
• or, in a combination of R901 to R904, two or more substituents selected from the combination may independently combine via a linking group to form a cyclic structure together with carbon atoms to which they are attached;
• and R91 represents a group in which a substituted or unsubstituted metallocenyl group bonds to the nitrogen atom of the imide group via a bivalent linking group composed of at least one selected from a substituted or unsubstituted bivalent aromatic ring.