| 摘要 |
A compound including a ligand L1 of Formula I,;;is described. In Formula I: rings A and B each independently represent a 5-membered or 6-membered carbocyclic or heterocyclic ring; X, Y, Z, and W are either carbon or nitrogen; R1 to R6 are selected from a variety of substituents, where adjacent substituents can be joined to form a fused ring; ligand L1 is coordinated to a metal M by X-M and Y-M bonds; and ligand L1 is optionally linked with other ligands to produce a tridentate, tetradentate, pentadentate or hexadentate ligand. Formulations and devices, such as an OLEDs, that include the compound that include a ligand L1 of Formula I are also described. |
| 主权项 |
1. A compound comprising a ligand L1 of Formula I: wherein rings A and B each independently represent a 5-membered or 6-membered carbocyclic or heterocyclic ring; wherein R5 and R6 each independently represent mono, di, tri, or tetra substitutions, or no substitution; wherein X, Y, W, and Z each independently selected from the group consisting of carbon and nitrogen; wherein R1 to R6 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 two adjacent substituents are optionally joined to form a ring, which can be further substituted; wherein the ligand L1 is coordinated to a metal M by X-M and Y-M bonds; and wherein the ligand L1 is optionally linked with other ligands to comprise a tridentate, tetradentate, pentadentate or hexadentate ligand. |
