Organic electroluminescent materials and devices

摘要

Novel organic compounds comprising a substituted anthracene or acridine ligand are provided. In particular, the compound includes an anthracene ligand substituted at the 9 and 10 positions. The compound may be used in organic light emitting devices to provide devices having improved efficiency and lifetime. In particular, these compounds may be especially beneficial for use in blue-emitting OLEDs.

主权项

1. A compound comprising a ligand L having the formula: wherein X is C; wherein R is selected from alkyl, alkenyl, alkynyl, amino, alkoxy, silyl, phosphino, mercaptyl, aryl or heteroaryl; wherein R2 and R3 may represent mono, di, tri, or tetra substitutions; wherein R2 and R3 are independently selected from the group consisting of hydrogen, alkyl, alkoxy, amino, alkenyl, alkynyl, aryl and heteroaryl; wherein the ligand L is coordinated to a metal M through coordinating atom X; wherein M is a transition metal; and wherein the ligand L is optionally linked to a second ligand, which is also coordinated to the metal M.