Patent ID: 8492006
Filing Date: 2013-07-23
Classification: H01L

Abstract:
1. A compound having the formula M(L) x (L 1 ) y (L 2 ) z : wherein the ligand L is wherein the ligand L wherein the ligand L wherein each L, L wherein M is a metal having an atomic number greater than 40; wherein x is 1, 2, or 3; 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 R is a fused carbocyclic or heterocyclic ring further substituted with a substituent containing Ge; wherein A, B, and C are each independently a 5 or 6-membered carbocyclic or heterocyclic ring; wherein R wherein each of R wherein adjacent substitutents of R wherein the ligand L is bidentately coordinated to the metal M.