Organometallic complex and organic electroluminescence device using the same

An organometallic complex represented by Formula 2:

• where M is Ir, Os, Pt, Pb, Re, Ru or Pd;
• R1, R2, R3, R4, R5, R6, R7, and R8 are each independently hydrogen, a halogen atom, a carboxyl group, an amino group, a nitro group, a cyano group, a substituted or unsubstituted C1-C20 alkyl group, a substituted or unsubstituted C1-C20 alkoxy group, a substituted or unsubstituted C2-C20 alkenyl group, a substituted or unsubstituted C2-C20 alkynyl group, a substituted or unsubstituted C1-C20 heteroalkyl group, a substituted or unsubstituted C6-C30 aryl group, a substituted or unsubstituted C7-C30 arylalkyl group, a substituted or unsubstituted C5-C30 heteroaryl group, a substituted or unsubstituted C3-C30 heteroarylalkyl group, or a substituted or unsubstituted B(Ra)2 where Ra is hydrogen, a halogen atom, a C1-C20 alkyl group, a C6-C30 aryl group, a C5-C30 heteroaryl group, a C1-C20 alkoxy group or a C6-C30 aryloxy group, and at least two of R1, R2, R3, R4, R5, R6, R7, and R8 may be fused into a 2 to 5-membered fused ring;
• and
• CyN-CyC is represented by one of Formulas 11 through 40:
• where R11, R12, R13, R14, and R15, which are single-substituted or multi-substituted functional groups, are each independently hydrogen, a halogen atom, —OR, —N(R)2, —P(R)2, —POR, —PO2R, —PO3R, —SR, —Si(R)3, —B(R)2, —B(OR)2, —C(O)R, —C(O)OR, —C(O)N(R), —CN, —NO2, —SO2, —SOR, —SO2R, —SO3R, a C1-C20 alkyl group, or a C6-C20 aryl group, where R is selected from the group consisting of hydrogen, a halogen atom, a substituted or unsubstituted C1-C20 alkyl group, a substituted or unsubstituted C1-C10 alkoxy group, a substituted or unsubstituted C2-C20 alkenyl group, a substituted or unsubstituted C2-C20 alkynyl group, a substituted or unsubstituted C1-C20 heteroalkyl group, a substituted or unsubstituted C6-C40 aryl group, a substituted or unsubstituted C7-C40 arylalkyl group, a substituted or unsubstituted C7-C40 alkylaryl group, a substituted or unsubstituted C2-C40 heteroaryl group and a substituted or unsubstituted C3-C40 heteroarylalkyl group;
• and
• Z is S, O, or NR0, where R0 is hydrogen or a C1-C20 alkyl group.

An organic electroluminescence device, comprising:

• a first electrode;
• a second electrode;
• and
• an organic layer comprising a light emitting layer comprised of an organometallic complex represented by Formula 1:
• where M is Ir, Os, Pt, Pb, Re, Ru or Pd;
• CyN is a substituted or unsubstituted C3-C60 heterocyclic group including nitrogen which is combined with M, or a substituted or unsubstituted C3-C60 heteroaryl group including nitrogen which is combined with M;
• CyC is a substituted or unsubstituted C4-C60 cyclic group including carbon which is combined with M, a substituted or unsubstituted C3-C60 heterocyclic group including carbon which is combined with M, a substituted or unsubstituted C3-C60 aryl group including carbon which is combined with M, or a substituted or unsubstituted C3-C60 heteroaryl group including carbon which is combined with M;
• CyN-CyC represents a cyclometalating ligand which is combined with M through the nitrogen (N) of the CyN and the carbon (C) of the CyC;
• m1 is an integer in a range of 0 to 2;
• m2 is 3-m1;
• A is a ligand including at least two nitrogen atoms and is combined with M through one of the two nitrogen atoms;
• X is NR0, O, or S, where R0 is hydrogen, a halogen atom, a carboxyl group, or a C1-C20 alkyl group;
• and
• Q is a substituted or unsubstituted C6-C30 arylene group.