IRIDIUM COMPLEX-CONTAINING COMPOSITION, ORGANIC LIGHT EMITTING DEVICE HAVING THE SAME, DISPLAY APPARATUS, IMAGING APPARATUS, ELECTRONIC EQUIPMENT, LIGHTING APPARATUS, AND MOVING BODY

The present disclosure provides a composition that includes: a homo-N-trans (HNT) iridium complex having an iridium atom, and a first ligand, a second ligand, and a third ligand that are bonded to the iridium atom, the second ligand having the same structure as the first ligand, the third ligand having a different structure from the first and second ligands; and an isomer of the iridium complex, the isomer having an iridium atom, a fourth ligand, a fifth ligand, and the third ligand, the fourth ligand being a ligand represented by the same rational formula as that of the first ligand, and the fifth ligand being a ligand represented by the same rational formula as that of the second ligand. The composition ratio of the isomer relative to a total of the iridium complex and the isomer is 1.5% or more.