Organometallic complex and organic electroluminescent device using the same

An organometallic complex represented by Formula 1:

• where M is Ir, Os, Pt, Pb, Re, Ru, or Pd;
• CyN-CyC is represented by one of Formulae 1-(i) to 1-(xxiii):
• where R1, R2, R3, R4, and R5 are single-substituted or multi-substituted functional groups, and R1, R2, R3, R4, and R5 are each independently H, 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 substituted or non-substituted C1-C20 alkyl group, a substituted or non-substituted C1-C10 alkoxy group, a substituted or non-substituted C2-C20 alkenyl group, a substituted or non-substituted C2-C20 alkynyl group, a substituted or non-substituted C1-C20 heteroalkyl group, a substituted or non-substituted C6-C40 aryl group, a substituted or non-substituted C7-C40 arylalkyl group, a substituted or non-substituted C7-C40 alkylaryl group, a substituted or non-substituted C2-C40 heteroaryl group, and a substituted or non-substituted C3-C40 heteroarylalkyl group, and Z is one of S, O, and NR0 where R0 is H or a C1-C20 alkyl group;
• m1 is an integer from 0 to 2, and m2 is 3-m1;
• A is a ligand containing at least two nitrogen atoms and A is bonded to M through one of said at least two nitrogen atoms;
• X is N, S, or P;
• Y is selected from the group consisting of hydrogen, a substituted or non-substituted C1-C20 alkyl group, a substituted or non-substituted C1-C10 alkoxy group, a substituted or non-substituted C2-C20 alkenyl group, a substituted or non-substituted C2-C20 alkynyl group, a substituted or non-substituted C1-C20 heteroalkyl group, a substituted or non-substituted C6-C40 aryl group, a substituted or non-substituted C7-C40 arylalkyl group, a substituted or non-substituted C7-C40 alkylaryl group, a substituted or non-substituted C2-C40 heteroaryl group, and a substituted or non-substituted C3-C40 heteroarylalkyl group;
• and
• Q is a substituted or non-substituted C1-C20 alkylene group.

An organic electroluminescent device, comprising:

• a pair of electrodes;
• and
• an organic layer interposed between the pair of electrodes, the organic layer composed of the organometallic complex represented by Formula 1
• where M is Ir, Os, Pt, Pb, Re, Ru, or Pd;
• CyN is a substituted or non-substituted C3-C60 heterocyclic group containing N that can be bonded to M, or a substituted or non-substituted C3-C60 heteroaryl group containing N that can be bonded to M;
• CyC is a substituted or non-substituted C4-C60 carbocyclic group containing C that can be bonded to M, a substituted or non-substituted C3-C60 heterocyclic group containing C that can be bonded to M, a substituted or non-substituted C3-C60 aryl group containing C that can be bonded to M, or a substituted or non-substituted C3-C60 heteroaryl group containing C that can be bonded to M;
• CyN-CyC is a cyclometalating ligand that is bonded to M through N and C, wherein substituents of CyN-CyC are each independently a halogen atom, —OR, —N(R)(R′), —P(R)(R), —POR, —PO2R, —PO3R, —SR, —Si(R)(R′)(R″), —B(R)(R′), —B(OR)(OR′), —C(O)R, —C(O)OR, —C(O)N(R), —CN, —NO2, —SO2, —SOR, —SO2R, —SO3R, a substituted or non-substituted C1-C20 alkyl group, or a substituted or non-substituted C6-C20 aryl group where R, R′, and R″ are each independently hydrogen, a substituted or non-substituted C1-C20 alkyl group, a substituted or non-substituted C1-C10 alkoxy group, a substituted or non-substituted C2-C20 alkenyl group, a substituted or non-substituted C2-C20 alkynyl group, a substituted or non-substituted C1-C20 heteroalkyl group, a substituted or non-substituted C6-C40 aryl group, a substituted or non-substituted C7-C40 arylalkyl group, a substituted or non-substituted C7-C40 alkylaryl group, a substituted or non-substituted C2-C40 heteroaryl group, or a substituted or non-substituted C3-C40 heteroarylalkyl group, and CyN and CyC are connected to form a substituted or non-substituted 4-7 atom cyclic group or a substituted or non-substituted 4-7 atom heterocyclic group;
• m1 is an integer from 0 to 2, and m2 is 3-m1;
• A is a ligand containing at least two nitrogen atoms, and A is bonded to M through one of said at least two nitrogen atoms;
• X is N, S, or P;
• Y is selected from the group consisting of hydrogen, a substituted or non-substituted C1-C20 alkyl group, a substituted or non-substituted C1-C10 alkoxy group, a substituted or non-substituted C2-C20 alkenyl group, a substituted or non-substituted C2-C20 alkynyl group, a substituted or non-substituted C1-C20 heteroalkyl group, a substituted or non-substituted C6-C40 aryl group, a substituted or non-substituted C7-C40 arylalkyl group, a substituted or non-substituted C7-C40 alkylaryl group, a substituted or non-substituted C2-C40 heteroaryl group, and a substituted or non-substituted C3-C40 heteroarylalkyl group;
• and
• Q is a substituted or non-substituted C1-C20 alkylene group.