Patent ID: 9029539
Filing Date: 2015-05-12
Classification: C07D,C07F,H01L,Y02E

Abstract:
1. A compound of the Structure 1 wherein Structure 1 contains a metal Met, coordinated to a tetradentate chelating ligand Lig of Structure 2 where V is a CR V connects the two ligand moieties L1 and L2, which may be identical or different on each occurrence, covalently to one another, and where the two ligand moieties L1 and L2 satisfy Structure 3 Cy1 is, identically or differently on each occurrence, a substituted or unsubstituted aromatic heterocyclic ring having 6 ring atoms, containing only one N atom which is bonded ionically, covalently or coordinatively to the metal via a ring atom, Cy2 is, identically or differently on each occurrence, a substituted or unsubstituted aromatic homocyclic ring having 6 ring atoms, which is bonded ionically, covalently or coordinatively to the metal via a ring atom; and Cy1 is not identical to Cy2 and one of the two rings bonds via a metal-carbon bond and the other via nitrogen, and Cy1 and Cy2 are linked to one another via substituents and thus define a polycyclic, aliphatic or aromatic ring system wherein Cy1 and Cy2 can be optionally substituted by R and where a is 0.