Organic metal complex, and organic light emitting device and display apparatus using the same

An organic metal complex having a structure represented by the following general formula (1):

• MLmL′n (1)
• where:
• M represents a metal atom selected from Ir, Pt, Rh, Os, and Zn;
• L and L′, which are different from each other, each represent a bidentate ligand;
• m represents an integer of 1 to 3 and n represents an integer of 0 to 2, provided that m+n is 3;
• a partial structure MLm represents a structure represented by the following general formula (2):
• where:
• A represents a structure represented by the following general formula (3), which has, as a basic skeleton, a benzo[f]isoquinoline ring:
• where:
• R1 to R8, which may be identical to or different from each other, each represent a hydrogen atom, a halogen atom, a substituted or unsubstituted alkyl group, an alkoxy group, an aralkyl group, a substituted amino group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heterocyclic group, and adjacent substituents among R1 to R8 may be bonded to form a ring;
• and
• B represents a fused ring which may have a substituent and the fused ring is a naphthalene ring;
• and
• a partial structure ML′n represents a structure including a monovalent bidentate ligand;
• provided that:
• i) at least one of R1 to R8 is not a hydrogen atom,
• ii) B represents a fused ring which has a substituent not being a hydrogen atom, or
• iii) at least one of R1 to R8 is not a hydrogen atom and B represents a fused ring, which has a substituent not being a hydrogen atom.