Patent ID: 7482450
Filing Date: 2009-01-27
Classification: C07F

Abstract:
1. A process for preparing homoleptic Ir(III) complexes of the formula (I) in which: CyD is a cyclic group which contains at least one donor atom via which the cyclic group is bonded to the metal and which may in turn bear one or more substituents R; the CyD and CyC groups are joined together via a covalent bond; CyC is a cyclic group which contains a carbon atom via which the cyclic group is bonded to the metal and which may in turn bear one or more substituents R; R is the same or different at each instance and is H, F, Cl, Br, I, NO R characterized by the reaction of an iridium(III)-containing reactant which contains at least one diketonate structural unit of the formula (II) in which: R R R excluding homoleptic diketonate complexes of the formula (II) and compounds of the formula (II) which contain two ligands of the formula (III) where the symbols CyC and CyD in formula (III) are each as defined under formula (I), with a compound of the formula (IV) in which the symbols CyD and CyC are each as defined under formula (I).