Organometallic Complex, Light-Emitting Element, Light-Emitting Device, Electronic Device, and Lighting Device

摘要

A novel organometallic complex with high reliability is provided. The organometallic complex includes iridium and ligands coordinated to the iridium. The ligands are a dipivaloylmethanato ligand and a ligand including a phenyl group to which an alkyl group is bonded and which is bonded to the 5-position of a pyrazine ring.;;In the formula, Ar represents a substituted or unsubstituted arylene group having 6 to 13 carbon atoms; and R1 and R2 each independently represent a substituted or unsubstituted alkyl group having 1 to 6 carbon atoms. R3 to R6 each independently represent any of hydrogen, halogen, a cyano group, a substituted or unsubstituted amino group, a substituted or unsubstituted hydroxyl group, a substituted or unsubstituted mercapto group, a substituted or unsubstituted alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted aryl group having 6 to 13 carbon atoms, and a substituted or unsubstituted heteroaryl group having 3 to 12 carbon atoms.

主权项

1. An organometallic complex represented by a general formula (G1), wherein Ar represents a substituted or unsubstituted arylene group having 6 to 13 carbon atoms, wherein R1 and R2 each independently represent a substituted or unsubstituted alkyl group having 1 to 6 carbon atoms, and wherein R3 to R6 each independently represent any of hydrogen, halogen, a cyano group, a substituted or unsubstituted amino group, a substituted or unsubstituted hydroxyl group, a substituted or unsubstituted mercapto group, a substituted or unsubstituted alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted aryl group having 6 to 13 carbon atoms, and a substituted or unsubstituted heteroaryl group having 3 to 12 carbon atoms.