abstract |
A novel 5-substituted-2-phenylquinoline-iridium complex for use in producing an organic light-emitting device having improved performance is provided. A compound of the formula (III) (R 1 to R 3 are H, D, alkyl, arylalkyl or aryl; R 5 and R 7 are methyl, R 6 is H, R 5 and R 6 are methyl, R 7 is H, R 5 to R 7 may be all methyl; R 4 is a C3 or higher alkyl or silyl group; [Selection figure] None |