METAL COMPLEXES, METHODS, AND USES THEREOF

• US 20150274762A1
• Filed: 10/25/2013
• Published: 10/01/2015
• Est. Priority Date: 10/26/2012
• Status: Abandoned Application

• Current Assignee: Arizona Board of Regents (University of Arizona)
• Original Assignee: Arizona Board of Regents (University of Arizona)
• Inventors: Li, Jian, Turner, Eric
• Application Number:
  US14/437,963
• Publication Number:
  US 20150274762A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: C07F 1/08 Copper compounds
• CPC Class Codes: C07F 1/10 Silver compounds
• CPC Class Codes: C07F 1/12 Gold compounds
• CPC Class Codes: C07F 13/00 Compounds containing elements of Groups 7 or 17 of the Periodic Table
• CPC Class Codes: C07F 15/0033 Iridium compounds
• CPC Class Codes: C07F 15/006 Palladium compounds
• CPC Class Codes: C07F 15/0073 Rhodium compounds
• CPC Class Codes: C07F 15/0086 Platinum compounds
• CPC Class Codes: C07F 15/04 Nickel compounds
• CPC Class Codes: C07F 15/06 Cobalt compounds
• CPC Class Codes: C07F 3/06 Zinc compounds
• CPC Class Codes: C09K 11/06 containing organic luminescent materials
• CPC Class Codes: C09K 2211/1029 containing one nitrogen atom as the heteroatom
• CPC Class Codes: C09K 2211/1033 with oxygen
• CPC Class Codes: C09K 2211/1044 containing two nitrogen atoms as heteroatoms
• CPC Class Codes: C09K 2211/1088 containing oxygen as the only heteroatom
• CPC Class Codes: C09K 2211/1092 containing sulfur as the only heteroatom
• CPC Class Codes: C09K 2211/185 of the platinum group, i.e. Os, Ir, Pt, Ru, Rh or Pd
• CPC Class Codes: C09K 2211/187 of the iron group metals, i.e. Fe, Co or Ni
• CPC Class Codes: C09K 2211/188 of other metals not provided for in one of the previous groups
• CPC Class Codes: H05B 33/14 : characterised by the chemical or physical composition or the arrangement of the electroluminescent material , or by the simultaneous addition of the electroluminescent material in or onto the light source
• CPC Class Codes: H10K 2101/10 : Triplet emission
• CPC Class Codes: H10K 2101/20 : Delayed fluorescence emission
• CPC Class Codes: H10K 2101/27 : Combination of fluorescent and phosphorescent emission
• CPC Class Codes: H10K 50/11 : characterised by the electroluminescent [EL] layers
• CPC Class Codes: H10K 50/121 : for assisting energy transfer, e.g. sensitization
• CPC Class Codes: H10K 50/125 : specially adapted for multicolour light emission, e.g. for emitting white light
• CPC Class Codes: H10K 85/331 : Metal complexes comprising an iron-series metal, e.g. Fe, Co, Ni
• CPC Class Codes: H10K 85/341 : Transition metal complexes, e.g. Ru(II)polypyridine complexes H10K85/331 takes precedence
• CPC Class Codes: H10K 85/342 : comprising iridium
• CPC Class Codes: H10K 85/346 : comprising platinum
• CPC Class Codes: H10K 85/371 : Metal complexes comprising a group IB metal element, e.g. comprising copper, gold or silver
• CPC Class Codes: H10K 85/381 : Metal complexes comprising a group IIB metal element, e.g. comprising cadmium, mercury or zinc
• CPC Class Codes: H10K 85/40 : Organosilicon compounds, e.g. TIPS pentacene

Abstract

Metal complexes that exhibit multiple radiative decay mechanisms, together with methods for the preparation and use thereof.

Claims

1. A metal-assisted delayed fluorescent emitter represented by one or more of formulas

2. The metal-assisted delayed fluorescent emitter of claim 1, wherein a² is absent in structure A.

3. The metal-assisted delayed fluorescent emitter of claim 1, wherein a² and b² are absent.

4. The metal-assisted delayed fluorescent emitter of claim 1, wherein X is N.

5. The metal-assisted delayed fluorescent emitter of claim 1, wherein A is

6. The metal-assisted delayed fluorescent emitter of claim 1, wherein C in structure (a) or (b) is

7. The metal-assisted delayed fluorescent emitter of claim 1, wherein N in structure (a) or (b) is

8. The metal-assisted delayed fluorescent emitter of claim 1, wherein M is Palladium (II).

9. The metal-assisted delayed fluorescent emitter of claim 1, represented by any one of

19. A device comprising the metal-assisted delayed fluorescent emitter of claim 1.

20. The device of claim 19, wherein the metal-assisted delayed fluorescent emitter is selected to have 100% internal quantum efficiency in the device settings.

21. The device of claim 19, wherein the device is an organic light emitting diode.

22. The device of claim 19, wherein the device is a fall color display.

10. A metal-assisted delayed fluorescent emitter having the structure

11. The metal-assisted delayed fluorescent emitter of claim 10, wherein Y^2b is CH, wherein Y^2c, Y^3b and Y^4b is N, wherein M is Ir or Rh.

12. A metal-assisted delayed fluorescent emitter having the structure

13. The metal-assisted delayed fluorescent emitter of claim 12, wherein Y^2b and Y^2c is C, wherein Y^3b and Y^4b is N, wherein each of Y^1a and Y^1b independently is O, NR², CR²R³, S, AsR², BR², PR², P(O)R², or SiR²R³, or a combination thereof, wherein each of R² and R³ independently is hydrogen, substituted or unsubstituted alkyl, alkenyl, alkynyl, aryl, heteroaryl, cycloalkane, cycloalkane, heterocyclyl, amino, hydroxyl, halogen, thio, alkoxy, haloalkyl, arylalkane, arylalkene, or R² and R³ together form C═

O, wherein each of R² and R³ independently is optionally linked to an adjacent ring structure, thereby forming a cyclic structure;

wherein M is Pt or Pd.

14. The metal-assisted delayed fluorescent emitter of claim 12, wherein Y^2b, Y^2c and Y^4b is CH, wherein Y^3b is N, wherein each of Y^1a and Y^1b independently is O, NR², CR²R³, S, AsR², BR², PR², P(O)R², or SiR²R³, or a combination thereof, wherein each of R² and R³ independently is hydrogen, substituted or unsubstituted alkyl, alkenyl, alkynyl, aryl, heteroaryl, cycloalkane, cycloalkane, heterocyclyl, amino, hydroxyl, halogen, thio, alkoxy, haloalkyl, arylalkane, arylalkene, or R² and R³ together form C═

O, wherein each of R² and R³ independently is optionally linked to an adjacent ring structure, thereby forming a cyclic structure;

wherein M is Au.

15. A metal-assisted delayed fluorescent emitter having the structure

16. A metal-assisted delayed fluorescent emitter having the structure:

17. A metal-assisted delayed fluorescent emitter having the structure

18. A metal-assisted delayed fluorescent emitter, having a singlet excited state/states energy from 0 to 0.2 eV higher than a lowest triplet state energy, and being capable of emitting simultaneously from the lowest triplet state and the singlet excited state/states at room temperature or elevated temperature and harvesting both electrogenerated singlet and triplet excitons.