Synthesis of platinum and palladium complexes as narrow-band phosphorescent emitters for full color displays
View Patent ↗Platinum and palladium complexes are disclosed that can be useful as narrow band phosphorescent emitters. Also disclosed are methods for preparing and using the platinum and palladium complexes.
1. A composition comprising a complex of the formula:
wherein:
M is platinum or palladium,
Ar 1 is substituted or unsubstituted: pyridyl, quinazolinyl, isoquinolinyl, imidazolyl, pyrazolyl, or benzimidazolyl,
each Ar 2 , Ar 3 , and Ar 4 is substituted or unsubstituted: phenyl or pyridyl,
each of X 1 , X 2 , X 3 , and X 4 is independently a carbon or a nitrogen atom,
Ar 5 is substituted or unsubstituted phenyl,
Ar 6 is substituted or unsubstituted phenyl or is absent,
A 1 is an optionally substituted nitrogen, carbon, boron, phosphorus, or silicon atom,
each of b 1 , b 2 , and b 3 is individually present or absent, and each b 1 , b 2 , and b 3 present is independently an oxygen, sulfur, or optionally substituted: nitrogen, carbon, boron, phosphorus, or silicon atom.
2. The composition of claim 1 , wherein
is isoquinolinyl, methylimidazolyl, or
is phenyl;
is pyridyl or phenyl;
is phenyl or pyridyl;
is: phenyl; and
is absent.
3. The composition of claim 1 , wherein the complex is represented by the structure:
4. The complex of claim 1 .
5. A light-emitting device comprising the complex of claim 1 .
6. A lighting device comprising the light-emitting device of claim 5 .
7. The lighting device of claim 6 , wherein the lighting device comprises a full color display.
8. The complex of claim 3 .
9. A light-emitting device comprising the complex of claim 8 .
10. A lighting device comprising the light-emitting device of claim 9 .
11. The lighting device of claim 10 , wherein the lighting device comprises a full color display.
12. The composition of claim 1 , wherein Ar 1 is substituted or unsubstituted: pyridyl, imidazolyl, or pyrazolyl.
13. The composition of claim 1 , wherein Ar 1 is substituted or unsubstituted pyridyl.
14. The composition of claim 1 , wherein each Ar 2 and Ar 3 is substituted or unsubstituted phenyl.
15. The composition of claim 1 , wherein Ar 4 is substituted or unsubstituted pyridyl.
16. The composition of claim 1 , wherein each of X 1 and X 4 is nitrogen atom.
17. The composition of claim 1 , wherein each of X 2 and X 3 is carbon atom.
18. The composition of claim 1 , wherein Ar 6 is absent.
19. The composition of claim 1 , wherein A 1 is an optionally substituted nitrogen atom.
20. The composition of claim 1 , wherein b 2 is absent.
21. The composition of claim 1 , wherein b 1 is absent such that Ar 5 and Ar 3 are connected through a bond; and b 3 is absent such that Ar 3 and Ar 4 are connected through a bond.