Tetradentate Cyclometalated Platinum Complexes Containing 9,10-Dihydroacridine And Its Analogues

• US 20180226593A1
• Filed: 04/06/2018
• Published: 08/09/2018
• Est. Priority Date: 06/02/2014
• Status: Active Grant

• Current Assignee: Arizona Board of Regents (University of Arizona)
• Original Assignee: Arizona Board of Regents (University of Arizona)
• Inventors: Li, Jian, Li, Guijie, Zhu, Zhi-Qiang
• Granted Patent: US 11,011,712 B2
• Time in Patent Office: Days
• CPC Class Codes: C07F 15/0086 Platinum compounds
• CPC Class Codes: C09K 11/06 containing organic luminescent materials
• CPC Class Codes: C09K 2211/1007 Non-condensed systems
• CPC Class Codes: C09K 2211/1014 bridged by heteroatoms, e.g. N, P, Si or B
• CPC Class Codes: C09K 2211/1022 bridged by heteroatoms, e.g. N, P, Si or B
• CPC Class Codes: C09K 2211/1029 containing one nitrogen atom as the heteroatom
• CPC Class Codes: C09K 2211/1044 containing two nitrogen atoms as heteroatoms
• CPC Class Codes: C09K 2211/185 of the platinum group, i.e. Os, Ir, Pt, Ru, Rh or Pd
• 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 50/11 characterised by the electroluminescent [EL] layers
• CPC Class Codes: H10K 85/346 comprising platinum

Abstract

Platinum complexes suitable for use as phosphorescent emitters or as delayed fluorescent and phosphorescent emitters having the following structure:

Claims

1. A compound of Formula III or Formula V:

2. The compound of claim 1, wherein the compound has the structure of Formula V:

3. The compound of claim 1, wherein the compound has a neutral charge.

4. The compound of claim 1, wherein each of

5. The compound of claim 1, wherein each of

6. The compound of claim 1, wherein each of

7. The compound of claim 2, wherein each of each of

9. The compound of claim 1, wherein polymeric comprises polyalkylene, polyester, or polyether.

10. The compound of claim 9, wherein polymeric comprises —

(CH₂O)_n—

CH₃, —

(CH₂CH₂O)_n—

CH₃, —

[CH₂CH(CH₃)]_n—

CH₃, —

[CH₂CH(COOCH₃)]_n—

CH₃, —

[CH₂CH(COOCH₂ CH₃)]_n—

CH₃, or —

[CH₂CH(COO^tBu)]_n—

CH₃, where n is an integer.

12. An emitter comprising the compound of claim 1, wherein the emitter is a phosphorescent emitter, a delayed fluorescent emitter, or a delayed fluorescent and phosphorescent emitter.

13. A device comprising the compound of claim 1.

14. The device of claim 13, comprising two or more compounds of claim 1.

15. The device of claim 13, wherein the compound is selected to have 100% internal quantum efficiency in the device settings.

16. The device of claim 13, wherein the device is an organic light emitting diode.

17. The compound of claim 1, wherein the compound has the structure of Formula III:

8. (canceled)

11. An emitter comprising any one of the structures of Structures 1-Structures 44.