Metal coordination compound and organic liminescence device

• US 20030152802A1
• Filed: 06/13/2002
• Published: 08/14/2003
• Est. Priority Date: 06/19/2001
• Status: Active Grant

• Current Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Original Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Inventors: Furugori, Manabu, Tsuboyama, Akira, Moriyama, Takashi, Igawa, Satoshi, Okada, Shinjiro, Mizutani, Hidemasa, Miura, Seishi, Takiguchi, Takao, Kamatani, Jun
• Granted Patent: US 6,783,873 B2
• Time in Patent Office: Days
• US Class Current: 428/690
• CPC Class Codes: C07F 15/0033 Iridium compounds
• CPC Class Codes: C07F 15/0046 Ruthenium 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: 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 2211/1011 Condensed systems
• 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 2211/1044 containing two nitrogen atoms as heteroatoms
• 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: H10K 2101/10 Triplet emission
• CPC Class Codes: H10K 50/11 characterised by the electroluminescent [EL] layers
• CPC Class Codes: H10K 85/324 comprising aluminium, e.g. Alq3
• 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 85/348 : comprising osmium
• CPC Class Codes: H10K 85/361 : Polynuclear complexes, i.e. complexes comprising two or more metal centers
• CPC Class Codes: H10K 85/60 : Organic compounds having low molecular weight H10K85/10 - H10K85/50 take precedence
• CPC Class Codes: H10K 85/631 : Amine compounds having at least two aryl rest on at least one amine-nitrogen atom, e.g. triphenylamine
• CPC Class Codes: Y10S 428/917 : Electroluminescent

Abstract

A metal coordination compound having a binuclear molecular structure represented by the following formula (1):

wherein M1 and M2 independently denotes a metal atom selected from the group consisting of Ir, Pt, Rh, Pd, Ru and Os; P is a quadridentate ligand connected to M1 and M1; Q1 is a bidentate ligand connected to M1; Q2 is a bidentate ligand connected to M2; and n is 1 or 2.

Claims

1. A metal coordination compound represented by the following formula (1):

2. A compound according to claim 1, wherein the bidentate ligand Q1 is represented by formula (2) shown below and the bidentate ligand Q2 is represented by formula (3) shown below:

3. A compound according to claim 1, wherein the quadridentate ligand P is connected to the metal atoms M1 and M2 each via a carbon atom, an oxygen atom or a nitrogen atom.

4. A compound according to claim 1, wherein the metal atom M1 is identical in species to the metal atom M2.

5. A compound according to claim 1, wherein the bidentate ligand Q1 is identical to the bidentate ligand Q2.

6. A compound according to claim 1, wherein the bidentate ligands Q1 and Q2 are respectively a carrier-transporting ligand and the quadridentate ligand P is a luminescent ligand.

7. An organic luminescence device, comprising:

a pair of electrodes disposed on a substrate, and a luminescence layer comprising at least one organic compound disposed between the electrodes, said organic compound comprising at least one species of a metal coordination compound of the formula (1) according to claim 1.

8. A device according to claim 7, wherein the bidentate ligands Q1 and Q2 in the formula (1) are respectively an energy-trapping ligand for receiving excitation energy from ambient molecules, and the quadridentate ligand P in the formula (1) is a luminescent ligand.

9. A device according to claim 7, wherein a voltage is applied between the electrodes to produce phosphorescence.

10. A device according to claim 7, wherein the luminescence layer further comprises a carrier-transporting compound.

11. A device according to claim 7, wherein the luminescence layer is consisting only of the metal coordination compound.