Patent ID: 8383828
Filing Date: 2013-02-26
Classification: C07F,C09K,H01L,H05B

Abstract:
1. A heteroleptic carbene complex of the general formula (I) comprising both carbene ligands and heterocyclic noncarbene ligands, in which the symbols are each defined as follows: M n is the number of carbene ligands, where n is 2, where the carbene ligands may be the same or different; m is the number of heterocyclic noncarbene ligands, where is 1; where carbene is a carbene ligand of the general formula (II) where the symbols in the carbine ligand of the general formula II are each defined as follows: Do r is 1; p is 0; q is 0; Y R  forms a six-membered ring which, in addition to the double bond already present has two further double bonds, and may optionally be substituted by alkyl or aryl groups and/or groups with donor or acceptor action; Y where Do and het is a heterocyclic noncarbene ligand of the general formula (III) in which the symbols in the ligand het of the general formula III are each defined as follows: D are each independently CR W is C, N, or P; E are each independently CR I is 1 or 2; R where the dotted line means an optional bridge between one of the D groups and one of the E groups; where the bridge may be defined as follows: alkylene, arylene, heteroarylene, alkynylene, alkenylene, NR v is from 2 to 10; and R