Heteroleptic iridium complex, and light-emitting material and organic light-emitting element using compound

摘要

A novel iridium complex which can be applied in an organic electroluminescent light emitting device, an organic electrochemical light emitting device, or the like, and which is thermally stable and has excellent sublimabilities. An iridium complex characterized by being represented by General Formula (1) (in General Formula (1), R¹ to R¹¹ and R¹³, R¹⁴, and R¹⁸ represent a hydrogen atom, an alkyl group with 1 to 30 carbon atoms, an aryl group with 6 to 30 carbon atoms, a halogen atom, or a cyano group; R¹², R¹⁵ to R¹⁷ and R¹⁹ represent a hydrogen atom, an alkyl group with 1 to 30 carbon atoms, a halogen atom, or a cyano group; the alkyl group may be substituted with an aryl group, a halogen atom, or a cyano group; the aryl group may be substituted with an alkyl group, a halogen atom, or a cyano group; adjacent R¹² to R¹⁹ may bind to each other to form a condensed ring; and m is an integer of 1 or 2, n is an integer of 1 or 2, and m+n is 3).