Four coordinated platinum and palladium complexes with geometrically distorted charge transfer state and their applications in light emitting devices

• US 9,425,415 B2
• Filed: 01/05/2015
• Issued: 08/23/2016
• Est. Priority Date: 02/18/2011
• 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, Hang, Xiaochun
• Primary Examiner(s): Aulakh, Charanjit
• Application Number:
  US14/589,599
• Publication Number:
  US 20150287938A1
• Time in Patent Office: 596 Days
• Field of Search: 546/10, 313/504, 548/101
• US Class Current: 1/1
• CPC Class Codes: C07F 15/0086 Platinum compounds
• CPC Class Codes: C09K 11/06 containing organic luminescent materials
• CPC Class Codes: C09K 2211/1003 Carbocyclic compounds
• 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 2211/1044 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: H10K 2101/10 Triplet emission
• CPC Class Codes: H10K 30/80 Constructional details
• CPC Class Codes: H10K 50/11 characterised by the electroluminescent [EL] layers
• CPC Class Codes: H10K 50/16 Electron transporting layers
• CPC Class Codes: H10K 50/828 Transparent cathodes, e.g. comprising thin metal layers
• CPC Class Codes: H10K 85/346 comprising platinum
• CPC Class Codes: Y02E 10/549 Organic PV cells

Abstract

Described herein are platinum and palladium compounds with geometrically distorted charge transfer state, applications and methods for the preparation thereof. The platinum and/or palladium compounds described herein are capable of emitting light and can be used in light emitting devices.

Claims

1. A compound represented by the formula:

2. The compound of claim 1, wherein V is N.

3. The compound of claim 1, wherein U is N.

4. The compound of claim 1, wherein A is O.

5. A light emitting device comprising the compound of claim 1.

6. An OLED device comprising the compound of claim 1.

7. The OLED device of claim 6, wherein the device is a phosphorescent OLED device.

8. A photovoltaic device comprising the compound of claim 1.

9. A luminescent display device comprising the compound of claim 1.