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Carbene containing metal complexes as OLEDs

  • US 20050258742A1
  • Filed: 01/10/2005
  • Published: 11/24/2005
  • Est. Priority Date: 05/18/2004
  • Status: Active Grant
First Claim
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1. A process for preparing a compound having the formula L2IrL′

  • comprising;

    (a) combining embedded imageand L′

    in the presence of an organic solvent to form a mixture, wherein L is a carbene ligand coordinated to Ir; and

    L′

    is a bidentate ligand or two monodentate ligands, and L is different from L′

    ;

    (b) maintaining the mixture for sufficient time to obtain L2IrL′

    ;

    (c) recovering L2IrL′

    from the mixture.

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