Complexes with tridentate ligands

• US 8,067,100 B2
• Filed: 09/29/2008
• Issued: 11/29/2011
• Est. Priority Date: 10/04/2007
• Status: Active Grant

• Current Assignee: Universal Display Corporation
• Original Assignee: Universal Display Corporation
• Inventors: Tsai, Jui-Yi, MacKenzie, Peter Borden, Beers, Scott, Walters, Robert W.
• Primary Examiner(s): Garrett; Dawn L.
• Assistant Examiner(s): Bohaty; Andrew K
• Application Number:
  US12/240,584
• Publication Number:
  US 20090115322A1
• Time in Patent Office: 1,156 Days
• Field of Search: None
• US Class Current: 428/690
• CPC Class Codes: C07F 15/002 Osmium compounds
• CPC Class Codes: C09K 11/06 containing organic luminescent materials
• CPC Class Codes: C09K 2211/1014 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 2211/185 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: Y10S 428/917 Electroluminescent

Abstract

The present invention relates to organic light emitting devices (OLEDs), and more specifically to phosphorescent organic materials used in such devices. More specifically, the present invention relates to emissive phosphorescent material which comprise at least one tridentate ligand bound to a metal center, wherein at least one of the bonds to the tridentate ligand is a carbon-metal bond.

Claims

1. A compound, having a structure selected from:

5. The compound of claim 1, having a structure:

6. The compound of claim 1, having a structure:

2. An organic light emitting device, comprising:

an anode;

a cathode; and

a phosphorescent emissive region disposed between the anode and the cathode, wherein the emissive material is selected from;

3. The organic light emitting device of claim 2, wherein the emissive material is

4. The organic light emitting device of claim 2, wherein the emissive material is