ORGANIC ELECTROLUMINESCENT MATERIALS AND DEVICES

摘要

A compound having the formula Ir(LA)n(LB)3−n, having the structure:;;Formula I, is described. In formula Ir(LA)n(LB)3−n, n is either 1 or 2; R1, R2, R4, and R5 each independently represent up to the maximum number of substitutions or no substitutions; X1, X2, X3, and X4 are each independently C or N; and at least one of X1, X2, X3, and X4 is N. In addition, any adjacent substituents of R1, R2, R3, R4, and R5 are optionally linked together to form a ring, and each R1, R2, R3, R4, and R5 is independently selected from hydrogen, deuterium, halide, alkyl, cycloalkyl, heteroalkyl, arylalkyl, alkoxy, aryloxy, amino, silyl, alkenyl, cycloalkenyl, heteroalkenyl, alkynyl, aryl, heteroaryl, acyl, carbonyl, carboxylic acids, ester, nitrile, isonitrile, sulfanyl, sulfinyl, sulfonyl, phosphino, and combinations thereof. Formulations and devices, such as an OLEDs, that include the compound of formula Ir(LA)n(LB)3−n are also described.

主权项

1. A compound having the formula Ir(LA)n(LB)3−n, having the structure: wherein R1 and R5 each independently represent mono, di, tri, or tetra-substitution, or no substitution; wherein R2 represents up to tri-substitution, or no substitution; wherein R4 represents mono, or di-substitution, or no substitution; wherein X1, X2, X3, and X4 are each independently C or N; wherein at least one of X1, X2, X3, and X4 is N; wherein any adjacent substituents of R1, R2, R, R4, and R5 are optionally linked together to form a ring; wherein each R1, R2, R3, R4, and R5 is independently selected from the group consisting of hydrogen, deuterium, halide, alkyl, cycloalkyl, heteroalkyl, arylalkyl, alkoxy, aryloxy, amino, silyl, alkenyl, cycloalkenyl, heteroalkenyl, alkynyl, aryl, heteroaryl, acyl, carbonyl, carboxylic acids, ester, nitrile, isonitrile, sulfanyl, sulfinyl, sulfonyl, phosphino, and combinations thereof; and wherein n is either 1 or 2.