# US 7,745,020 B2 · Metallic compound and organic electroluminescence device comprising the same

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- Number: US 7,745,020 B2
- Document ID: US7745020B2
- Status: Granted
- Kind: B2
- Application number: 11/910,161
- Filed: 2007-04-10
- Published: 2008-08-14
- Granted: 2010-06-29
- Earliest claimed: 2006-01-06
- Assignees: Samsung Electronics Co., Ltd.; Industry-University Cooperation Foundation Hanyang University
- Inventors: Dong-Hack Suh; Song-Ho Kim; Chi-Hun Kim; Dae-Beom Kim
- Web page: https://patentgrep.com/patent/US7745020B2

## CPC

- C09K 11/06: containing organic luminescent materials
- C07F 15/0033: {Iridium compounds}
- 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}
- C09K 2211/1011: Condensed systems
- C09K 2211/1029: containing one nitrogen atom as the heteroatom
- C09K 2211/1033: with oxygen
- C09K 2211/1037: with sulfur
- C09K 2211/1044: containing two nitrogen atoms as heteroatoms
- C09K 2211/1059: containing three nitrogen atoms as heteroatoms
- C09K 2211/1092: containing sulfur as the only heteroatom
- C09K 2211/185: of the platinum group, i.e. Os, Ir, Pt, Ru, Rh or Pd
- Y10S 428/917: Electroluminescent
- C09K: MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C07F: ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM (metal-containing porphyrins C07D487/22)
- H05B: ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- Y10S: TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS

## Abstract

The present invention relates to a light emitting metallic compound of Chemical Formula 1 and an organic electroluminescence device including the compound. In the Chemical Formula 1, M is selected from Ir, Pt, Rh, Re, and Os, m is 2, provided that m is 1 when M is Pt. X is a N or P atom, Y is S, O, or Se, and Z is SiR5R6, CR5R6, PR5, S, SO2, carbonyl, or NR5, and L2 is represented by Chemical Formulae 2, 3, or 4. R1, R2, R3, R4, R5, R6, R7, and R8 are the same or different, and are selected from hydrogen, a C1 to C20 alkyl, an aryl, a cycloalkyl, a halogen, a linear or branched substituent including at least one halogen, a linear or branched substituent including at least one heteroatom, carbonyl, vinyl, and acetylenyl, or may form a cycle, and R9 is hydrogen, a C1 to C20 alkyl excluding an aromatic cyclic substituent, a cycloalkyl, a halogen, a linear or branched substituent including at least one halogen; or a linear or branched substituent including at least one heteroatom.

## Claims

### Claim 1

A metallic compound represented by the following Chemical Formula 1:
wherein M is a transition metal selected from Ir, Pt, Rh, Re and Os, m is 2, provided that the m is 1 when M is Pt,
R1, R2, R3, R4, R5, R6, R7, and R8 are the same or different, and are selected from substituents of hydrogen, a C1 to C20 alkyl, an aryl, a cycloalkyl, a halogen, a linear or branched substituent including at least one halogen, a linear or branched substituent including at least one heteroatom, carbonyl, vinyl, and acetylenyl, or have a cyclic structure formed from substituents,
R9 is hydrogen, a C1 to C20 alkyl excluding an aromatic cyclic substituent, a cycloalkyl, a halogen, a linear or branched substituent including at least one halogen;
or a linear or branched substituent including at least one heteroatom, and
L1 is represented by the following Chemical Formula 2:
wherein L1 in the above formula 2, is a independent ligand having a covalent bond site with a carbon denoted as * and a coordination bond with nitrogen and forming a complex compound with the transition metal M, and
X is a hetero atom selected from nitrogen, oxygen, sulfur and phosporus, and
Z1 and Z2 are atoms for forming a C4 to C7 aromatic hydrocarbon ring or aromatic heterocyclic ring and are represented by the following Chemical Formulae 4:

### Claim 2 (depends on 1)

An organic electroluminescence device comprising the metallic compound of claim 1.