Carbene containing metal complexes as OLEDs

Details Carbene containing metal complexes as OLEDs Carbene containing metal complexes as OLEDs

2011-06-07

2011-06-07

Gonzalez, Porfirio Nazario (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C556S136000, C546S004000, C313S504000

Reexamination Certificate

active

07956192

ABSTRACT:
A process for preparing a compound having the formula L2IrL′ is provided. The process comprises:combiningand L′ in the presence of an organic solvent to form a mixture, wherein L is a suitable carbene ligand precursor coordinated to Ir; and L′ is a bidentate ligand or two monodentate ligands, and L is different from L′;Also provided is a process for preparing a compound having the formulaThe process comprises:(a) combining L, a carbene ligand precursor, with an organic solvent;(b) maintaining the mixture of step (a) at a temperature from about 175° C. to less than the boiling point of the organic solvent in (a).A process for preparing a compound with the formula L3Ir is also provided. This process comprises combiningand L in the presence of alcohol and a base to form a mixture, wherein L is a bidentate ligand that may form a five-membered chelate ring.

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