Organometallic complex, method of preparing the same and...

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Reexamination Certificate

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C546S007000, C313S504000

Reexamination Certificate

active

08053093

ABSTRACT:
An organometallic complex for an organic light emitting device represented by formula 1, a method of preparing the same and an organic light emitting device including the same:where R1through R16are a hydrogen atom, a cyano group, a hydroxyl group, a nitro group, a halogen atom, a C1-C20alkyl group, a C1-C20alkoxy group, a C6-C20aryl group, a C7-C20arylalkyl group, a C2-C20alkylalkoxy group, a C7-C20arylalkoxy group, a C6-C20arylamino group, a C1-C20alkylamino group, a C6-C20heteroarylamino group, and a C2-C20hetero-ring group; and M is a bivalent metal such as Be, Mg, Zn, Ca, Cr, Fe, Co, Ni and Cu. The compound represented by Formula 1 can be effectively used in an electron transport layer or an electron injection layer. An organic light emitting device including the compound represented by Formula 1 can thus have long lifetime.

REFERENCES:
patent: 5858563 (1999-01-01), Sano et al.
patent: 6362339 (2002-03-01), McCormick
patent: 11-040355 (1999-02-01), None
Tommasi et. al., Synthesis of Pyrroloquinolinequinone Analogs . . . , 1995, Inorganic Chemistry, vol. 34, pp. 1514-1523.
Korean Office Action issued by Korean Patent Office on Apr. 9, 2009 corresponding Korean Patent Application No. 10-2007-0058006 and Request for Entry of the Accompanying Office Action attached herewith.

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