Tetradentate platinum complexes

• US 8,871,361 B2
• Filed: 03/07/2012
• Issued: 10/28/2014
• Est. Priority Date: 02/23/2011
• Status: Active Grant

• Current Assignee: Universal Display Corporation
• Original Assignee: Universal Display Corporation
• Inventors: Xia, Chuanjun, Yeager, Walter, Li, David Zenan, Fiordelisio, James, Ma, Bin, Elshenawy, Zeinab, Layek, Suman, Barron, Ed, Kottas, Gregg, Brooks, Jason
• Primary Examiner(s): YAMNITZKY, MARIE ROSE
• Application Number:
  US13/414,479
• Publication Number:
  US 20120223634A1
• Time in Patent Office: 965 Days
• Field of Search: None
• US Class Current: 428/690
• CPC Class Codes: C07F 15/0086 Platinum compounds
• CPC Class Codes: C09K 11/06 containing organic luminescent materials
• 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 50/80 Constructional details
• CPC Class Codes: H10K 85/346 comprising platinum
• CPC Class Codes: H10K 85/40 Organosilicon compounds, e.g. TIPS pentacene
• CPC Class Codes: H10K 85/6572 comprising only nitrogen in the heteroaromatic polycondensed ring system, e.g. phenanthroline or carbazole
• CPC Class Codes: H10K 85/6576 comprising only sulfur in the heteroaromatic polycondensed ring system, e.g. benzothiophene
• CPC Class Codes: Y02E 10/549 Organic PV cells
• CPC Class Codes: Y10S 428/917 Electroluminescent

Abstract

Novel phosphorescent tetradentate platinum (II) compounds comprising a twisted aryl group are provided. Also provided are novel phosphorescent tetradentate platinum (II) compounds comprising an imidazo[1,2-f]phenanthridine moiety. The compounds may be used in organic light emitting devices to provide improved device efficiency, line shape and lifetime.

Claims

1. A compound having the formula:

2. The compound of claim 1, wherein C is benzene.

3. The compound of claim 1, wherein the compound has a formula selected from the group consisting of:

4. The compound of claim 1, wherein A-B is selected from the group consisting of:

5. The compound of claim 1, wherein the compound is selected from the group consisting of:

6. The compound of claim 1, wherein the compound is selected from the group consisting of:

7. A first device comprising an organic light emitting device, comprising:

an anode;

a cathode; and

an organic layer, disposed between the anode and the cathode, comprising a compound having the formula;

8. A compound having the formula:

9. The compound of claim 8, wherein the compound has the formula:

10. The compound of claim 8, wherein the compound has the formula:

11. The compound of claim 8, wherein the compound is selected from the group consisting of:

12. A first device comprising an organic light emitting device, comprising:

an anode;

a cathode; and

an organic layer, disposed between the anode and the cathode, comprising a compound having the formula;