Light-emitting material comprising orthometalated iridium complex, light-emitting device, high efficiency red light-emitting device, and novel iridium complex

摘要

A synthesis method of a compound represented by formula (23), the method comprising reacting at least one of a ligand and a dissociation product thereof with an iridium compound at a room temperature or at an elevated temperatures in the presence or absence of a solvent or in the presence or absence of a base: