Pyridine-oxyphenyl coordinated iridium (III) complexes and methods of making and using
View Patent ↗Iridium (III) complexes are described together with methods to prepare and use such complexes. Also described are devices that utilize the iridium (III) complexes.
1. A multidentate iridium (III) complex represented by one of the following general formulas:
wherein:
X represents an iridium atom,
each C represents a phenyl moiety,
each N represents a pyridyl, pyrrolyl, pyrazolyl, or imidazolyl moiety,
each E represents a covalent bond, a CH 2 moiety, or an oxygen atom, and at least one E represents an oxygen atom; and
each A in General Formula 1 represents a phenyl or pyridyl moiety, or A-A represents an acetylacetonyl moiety.
2. The multidentate iridium (III) complex of claim 1 ,
wherein General Formula 1 is a tetradentate iridium (III) complex.
3. The multidentate iridium (III) complex of claim 2 , wherein each N represents a pyridyl or imidazolyl moiety.
4. The multidentate iridium (III) complex of claim 2 , wherein two E represent oxygen atoms.
5. The multidentate iridium (III) complex of claim 1 , wherein General Formula 2 is a hexadentate iridium (III) complex.
6. The multidentate iridium (III) complex of claim 5 , wherein two E represent oxygen atoms.
7. The multidentate iridium (III) complex of claim 1 , wherein General Formula 3 is a hexadentate iridium (III) complex.
8. The multidentate iridium (III) complex of claim 7 , wherein two E represent oxygen atoms.
9. An organic light-emitting diode (OLED) comprising one or more of the multidentate iridium (III) complexes of claim 1 .
10. An organic photovoltaic device comprising, as a donor or acceptor material, one or more of the multidentate iridium (III) complexes of claim 1 .
11. A luminescent bio-marker comprising one or more of the multidentate iridium (III) complexes of claim 1 .
12. The multidentate iridium (III) complex of claim 1 , wherein each E represents an oxygen atom or a covalent bond.
13. The multidentate iridium (III) complex of claim 12 , wherein at least three E represent oxygen atoms.
14. The multidentate iridium (III) complex of claim 13 , wherein at least four E of General Formula 2 represent oxygen atoms.
15. The multidentate iridium (III) complex of claim 1 , wherein each E represents an oxygen atom.
16. The multidentate iridium (III) complex of claim 1 , wherein at least three E represent oxygen atoms.
17. The multidentate iridium (III) complex of claim 1 , wherein at least four E of General Formula 2 represent oxygen atoms.