ORGANOMETALLIC IRIDIUM COMPLEX, LIGHT-EMITTING ELEMENT, LIGHT-EMITTING DEVICE, ELECTRONIC DEVICE AND LIGHTING DEVICE

摘要

PROBLEM TO BE SOLVED: To provide an organometallic iridium complex having high emission efficiency and high heat resistance and serving as a phosphorescence luminescent material to emit yellow light, and a light-emitting element having high current efficiency.SOLUTION: An organometallic iridium complex includes a structure having a pyrimidine skeleton represented by formula (G1) (Ar is a substituted or unsubstituted C6-13 aryl group; R-Reach independently represent H or a substituted or unsubstituted C1-6 alkyl group).SELECTED DRAWING: None