Patent ID: 7820822
Filing Date: 2010-10-26
Classification: C07F,C09B,C09K,H01L,H05B,Y02E,Y02P

Abstract:
1. A compound of the formula (1) wherein a part-structure M(L) wherein the symbols and indices used are: M at each instance is a transition metal ion; Y is the same or different at each instance and is C(R D is a carbon atom in Cy1 and a nitrogen atom is Cy2; E for each occurrence is C; Cy1 is the same or different at each instance and is a six-membered monocyclic aryl ring which is bonded to the metal M via an atom D and which also has a single bond to the part-cycle Cy2 and a single bond to the Y group; Cy2 is the same or different at each instance and is a six-membered heteroaryl ring containing one N atom and which is bonded via an atom D to the metal M and which also has a single bond to the cycle Cy1 and a common edge with the part-cycle Cy3; Cy3 is the same or different at each instance and is a six-membered monocyclic aryl ring which has a single bond to the Y group and a common edge with the part-cycle Cy2; R n is 1, 2 or 3; L′ and L″ are monoanionic, bidentate chelating ligands, and m and o are the same or different at each instance and are 0, 1 or 2.