Heteroleptic Ir(III) phosphors with bis-tridentate chelating architecture for high efficiency OLEDs

摘要

A bis-tridentate iridium complex represented by a formula (I):;
where R3 to R8, R21 to R23, R9, R10, X1, X2, and X3 are as defined in the specification.

主权项

1. A bis-tridentate iridium complex represented by a formula (I): where: R3 to R8 are each independently a hydrogen atom, a fluorine atom, an alkyl group, a perfluoroalkyl group, an alkoxy group, an aryl group, a dimethylamino group, a diphenylamino group, or a carbazolyl group; R21 to R23 are each independently a hydrogen atom, a fluorine atom, an alkyl group, a perfluoroalkyl group, an alkoxy group, an aryl group, a dimethylamino group, a diphenylamino group, or a carbazolyl group, or R21 and R22 or R22 and R23 may be alkene groups joined to form a benzene ring which may be substituted by a fluorine atom, an alkyl group, a perfluoroalkyl group, an alkoxy group, an aryl group, a dimethylamino group, a diphenylamino group, or a carbazolyl group; R9 and R10 are each independently a hydrogen atom, a fluorine atom, or an alkoxy group; X1 is a nitrogen atom or C—X11, X11 being a perfluoroalkyl group; X2 is a nitrogen atom or CH; and X3 is a nitrogen atom or C—X31, X31 being a hydrogen atom, a fluorine atom, a cyano group, an alkyl group, a perfluoroalkyl group, an alkoxy group, or an aryl group.