Universal Display Corporation
Organic electroluminescent materials and devices

Abstract:

A compound of Formula I ##STR00001## M is selected from Pd or Pt; X is selected from N or CR.sup.3; each R.sup.1 and R.sup.2, which can be the same or different, and R.sup.3, are independently selected from the group consisting of hydrogen, deuterium, halogen, alkoxide, alkyl, cycloalkyl, heteroalkyl, heterocycle, cycloalkene, aryl, heteroaryl, and combinations thereof; wherein at least one of R.sup.1, R.sup.2, or R.sup.3 is selected from the group consisting of: a partially or fully fluorinated alkyl; a partially or fully fluorinated cycloalkyl; and a group of formula A connected to a carbon of one of Y.sup.1 to Y.sup.4 ##STR00002## formula A, wherein Y.sup.1, Y.sup.2, Y.sup.3, and Y.sup.4 are independently selected from C or N, and no more than two of Y.sup.1 to Y.sup.4 is N; and Z is selected from the group consisting of O, S, NR.sup.5, and CR.sup.6R.sup.7. An OLED that includes an organic layer positioned between two electrodes, the organic layer including a compound of Formula I is also described. A consumer product that includes the OLED, and a formulation that includes a compound of Formula I, is also described.