Patent ID: 8101755

Claim:
An organometallic complex represented by a formula (G2), wherein R 1 , R 2 , R 3 , R 4 and R 5 each represent hydrogen or a cyano group, and at least one of R 1 , R 2 , R 3 , R 4 and R 5 is a cyano group; wherein L represents a monoanionic ligand selected from the group consisting of a monoanionic bidentate chelate ligand having a β-diketone structure, a monoanionic bidentate chelate ligand having a carboxyl group, a monoanionic bidentate chelate ligand having a phenolic hydroxyl group, and a monoanionic bidentate chelate ligand in which two ligand elements are both nitrogen; wherein M represents iridium; and wherein n is 2.