Patent ID: 9691993
Date: 2017-06-27
CPC Classifications: C07F,C09K,H01L

Claim:
1. A compound having a formula M(L A ) x (L B ) y (L C ) z : wherein the ligand L wherein the ligand L wherein the ligand L wherein M is a metal having an atomic number greater than 40; wherein x is 1, or 2; wherein y is 0, 1, or 2; wherein z is 0, 1, or 2; wherein x+y+z is the oxidation state of the metal M; wherein X wherein rings A, C, and D are each independently a 5 or 6-membered carbocyclic or heterocyclic ring; wherein R wherein R wherein two adjacent R wherein, when ring E is heterocyclic, the only heteroatom is nitrogen; and wherein ring E is further substituted by R wherein R wherein:  which are optionally further substituted with one or more groups independently selected from the group consisting of hydrogen, deuterium, alkyl, cycloalkyl, and combinations thereof,  which are optionally further substituted with one or more groups independently selected from the group consisting of hydrogen, deuterium, alkyl, cycloalkyl, and combinations thereof, or wherein the wave lines indicate bonds to rings E or A, respectively; wherein each of R wherein any adjacent substituents of R