Pyridine-oxyphenyl coordinated iridium (III) complexes and methods of making and using

• US 9,221,857 B2
• Filed: 04/13/2012
• Issued: 12/29/2015
• Est. Priority Date: 04/14/2011
• Status: Active Grant

• Current Assignee: Arizona Board of Regents (University of Arizona)
• Original Assignee: Arizona Board of Regents (University of Arizona)
• Inventors: Li, Jian, Turner, Eric, Bakken, Nathan J.
• Primary Examiner(s): Aulakh, Charanjit
• Application Number:
  US13/446,354
• Publication Number:
  US 20120264938A1
• Time in Patent Office: 1,355 Days
• Field of Search: 546/2, 313/504
• US Class Current: 1/1
• CPC Class Codes: C07F 15/0033 Iridium compounds
• CPC Class Codes: C09K 11/06 containing organic luminescent materials
• CPC Class Codes: C09K 2211/185 of the platinum group, i.e. Os, Ir, Pt, Ru, Rh or Pd
• CPC Class Codes: H10K 2101/10 Triplet emission
• CPC Class Codes: H10K 50/11 characterised by the electroluminescent [EL] layers
• CPC Class Codes: H10K 85/342 comprising iridium
• CPC Class Codes: Y02E 10/549 Organic PV cells

Abstract

Iridium (III) complexes are described together with methods to prepare and use such complexes. Also described are devices that utilize the iridium (III) complexes.

Claims

1. A multidentate iridium (III) complex represented by one of the following general formulas:

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 pyridinyl or imidazolyl moiety.

4. The multidentate iridium (III) complex of claim 1, wherein General Formula 2 is a hexadentate iridium (III) complex.

5. The multidentate iridium (III) complex of claim 1, wherein General Formula 3 is a hexadentate iridium (III) complex.

8. An organic light-emitting diode (OLED) comprising one or more of the multidentate iridium (III) complexes of claim 1.

9. An organic photovoltaic device comprising, as a donor or acceptor material, one or more of the multidentate iridium (III) complexes of claim 1.

10. 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.

6. A hexadentate iridium (III) complex represented by the formula:

7. The hexadentate iridium (III) complex of claim 6, wherein each N represents a pyridinyl moiety.

11. An iridium (III) complex having one of the following structures: