Polymers having attached luminescent metal complexes and devices made with such polymers
View Patent ↗The present invention is generally directed to a polymeric metal complex comprising a polymeric material having a plurality of a first-type functional groups, wherein at least a portion of the functional groups are coordinated to at least one metal containing complex, polymeric-metal complex salts comprising at least one polymeric material having a plurality of first-type functional groups having a charge, and at least one metal complex having an opposite charge. It further relates to devices that are made with the polymeric metal complex or the polymeric-metal complex salt.
1. A polymeric metal complex comprising at least one functionalized polymer having a plurality of a first-type functional group, wherein at least a portion of the first-type functional groups are coordinated to at least one iridium ion said at least one iridium ion is further coordinated to at least one ligand selected from 2-arylpyridines, 2-arylpyrimidines and 2-arylquinolines having an Eighth Formula:
wherein:
adjacent pairs of R 1 -R 8 can be joined to form a five- or six-membered ring,
R 1 -R 8 can be the same or different from each other and are elected from F, H, alkyl, aryl, alkylaryl, C s H a F b , OC s H a F b , and OCF 2 X, where s is an integer between 1 and 6, a+b=2s+1, and X=H, Cl, or Br; and
A=C or N, provided when A=N, there is no R 1 .
2. The polymeric metal complex of claim 1 wherein a least one of R 1 -R 8 is selected from F, C s H a F b , OC s H a F b , and OCF 2 X, where s=1-6, a+b=2s+1, and X=H, Cl, or Br.
3. A device comprising an emitting layer comprising at least one polymeric metal complex of claim 1 .
4. A device comprising an emitting layer comprising at least one polymeric metal complex of claim 2 .