ORGANIC ELECTROLUMINESCENT MATERIALS AND DEVICES

摘要

A compound including a Ligand L of Formula I:;;as well as, a first device and a formulation containing the same, are disclosed. In the compound including the Ligand L of Formula I:
X is selected from the group consisting of S, Se, SiRR′ and GeRR′;R1, R2, R, and R′ are each 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;any adjacent substitutions or substituents of R1, R2, R, and R′ are optionally linked together to form a ring;the Ligand L is coordinated to a metal M having an atomic number of 40 or greater, andthe Ligand L is optionally linked with other ligands to comprise a tridentate, tetradentate, pentadentate or hexadentate ligand.

主权项

1. A compound comprising a Ligand L of Formula 1: wherein R1 represents mono, or di-substitution, or no substitution; wherein R2 represents mono, di, or tri-substitution, or no substitution; wherein X is selected from the group consisting of S, Se, SiRR′ and GeRR′; wherein R1, R2, R, and R′ are each 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; wherein any adjacent substitutions are optionally linked together to form a ring; wherein the Ligand L is coordinated to a metal M having an atomic number of 40 or greater; and wherein the Ligand L is optionally linked with other ligands to comprise a tridentate, tetradentate, pentadentate or hexadentate ligand.