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Title:
METAL COMPLEX COMPOUNDS AND ORGANIC ELECTROLUMINESCENT DEVICES MADE BY USING THE SAME
Document Type and Number:
WIPO Patent Application WO/2007/055187
Kind Code:
A1
Abstract:
The invention provides metal complex compounds represented by the general formula (1); an organic electroluminescent (EL) device comprising one pair of electrodes and a single- or multi-layer organic thin film held between the electrodes which involves a light-emitting layer as the essential, wherein at least one layer constituting the organic thin film contains the metal complex compound to thereby attain high light emission efficiency and a long lifetime; and novel metal complex compounds capable of realizing the organic EL device: (L1)mM(L2)n (1) wherein M is Ir or Pt; L1 and L2 are bidentate ligands different form each other; the partial structure (L1)mM is represented by the general formula (2) and the partial structure M(L2)n is represented by the general formula (3); m is an integer of 0 to 2; n is an integer of 1 to 3; and the sum of m and n represents the valence of M: (2) [wherein A1 is an aromatic heterocyclic group and B1 is aryl, A1 and B1 being bonded to each other through Z; and Z is a single bond or the like] and (3) [wherein L3 and L4 are each a bridging group having a covalent bond (solid line) and a coordinate bond (arrow); at least one of L3 and L4 is an aromatic heterocyclic group having a coordinate bond due to carbenic carbon; Ra and Rb are each independently hydrogen or the like; and L3, L4, Ra and Rb may be bonded to each other to form a ring structure].

Inventors:
WATANABE, Masami (1280, Kamiizumi Sodegaura-sh, Chiba 93, 2990293, JP)
Application Number:
JP2006/322148
Publication Date:
May 18, 2007
Filing Date:
November 07, 2006
Export Citation:
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Assignee:
IDEMITSU KOSAN CO., LTD. (1-1 Marunouchi 3-chome, Chiyoda-ku Tokyo, 21, 1008321, JP)
出光興産株式会社 (〒21 東京都千代田区丸の内三丁目1番1号 Tokyo, 1008321, JP)
International Classes:
C07F15/00; C07D233/58; C07F5/02; C07F19/00; C09K11/06; H01L51/50
Domestic Patent References:
WO2006008976A1
Other References:
FRANKEL R. ET AL: 'Homoleptic carbene complexes Part IX. Bis(imidazolin-2-ylidene-1-yl)borate complexes of palladium(II), platinum(II) and gold(I)' INORGANICA CHIMICA ACTA vol. 312, no. 1-2, 2001, pages 23 - 39, XP003012660
Attorney, Agent or Firm:
OHTANI, Tamotsu et al. (OHTANI PATENT OFFICE, Bridgestone Toranomon Bldg. 6F. 25-2, Toranomon 3-chom, Minato-ku Tokyo 01, 1050001, JP)
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