Patent ID: 7462719

Claim:
A metal complex compound represented by following general formula (1): (L A ) m M(L B ) n (1) wherein M represents iridium atom or platinum atom, L A and L B represent bidentate ligands different from each other, a partial structure represented by (L A ) m has a structure represented by following general formula (2): wherein L 1 represents an arylene group having 3 to 50 ring atoms which may have substituents or an aromatic heterocyclic group having 3 to 50 ring atoms which may have substituents, L 2 represents an aromatic heterocyclic group having 3 to 50 ring atoms which may have substituents, the group represented by L 1 is bonded with the metal represented by M via a covalent bond (a solid line), the group represented by L 2 is bonded with the metal represented by M via a coordinate bond (an arrow); and Z 1 represents a group crosslinking the groups represented by L 1 and L 2 , which is a single bond, —O—, —S—, —CO—, —(CR′R″) a —, —(SiR′R″) a — or —NR′— (R′ and R″ each independently represent hydrogen atom, an aryl group having 6 to 50 ring carbon atoms which may have substituents, an aromatic heterocyclic group having 3 to 50 ring atoms which may have substituents, an alkyl group having 1 to 50 carbon atoms which may have substituents or an alkenyl group having 2 to 50 carbon atoms which may have substituents, a represents an integer of 1 to 10, and the atoms and the groups represented by R′ and R″ may be same with or different from each other); a partial structure represented by (L B ) n has a structure represented by following general formula (3): wherein L 3 represents an arylene group having 3 to 50 ring atoms which may have substituents or an aromatic heterocyclic group having 3 to 50 ring atoms which may have substituents, L 4 represents an aromatic heterocyclic group having 3 to 50 ring atoms which may have substituents, the group represented by L 3 is bonded with the metal represented by M via a covalent bond, the group represented by L 4 is bonded with the metal represented by M via a coordinate bond; and Z 2 represents a vinylidene group crosslinking the groups represented by L 3 and L 4 to each other, a group represented by L 3 -Z 2 -L 4 having a structure represented by a following formula: wherein R a and R b each independently represent hydrogen atom, an alkyl group having 1 to 50 carbon atoms which may have substituents, an alkenyl group having 2 to 50 carbon atoms which may have substituents, an aryl group having 6 to 50 ring carbon atoms which may have substituents, hydroxyl group, mercaptan group, a group —SiR′ 3 having silicon atom, a group —NR′ 2 having a nitrogen atom or a group —PR′ 2 having phosphorus atom wherein R′ is defined above, and the atoms and the groups represented by L 3 and R a , and L 4 and R b do not form a cyclic structure, R a and R b may be bonded to each other to form a cyclic structure; and m represents an integer of 0 to 2, n represents an integer of 1 to 3, m+n specifying a valence of the metal represented by M.