Nitrogen-containing heterocyclic derivative and organic electroluminescent device using the same

An organic electroluminescence device comprising an organic thin-film layer which is disposed between a cathode and an anode and comprises one or more layers having a light emitting layer, wherein at least one layer of the organic thin-film layer comprises a nitrogen-comprising heterocyclic derivative represented by formula (1):

• wherein
• R is hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring-forming carbon atoms, a substituted or unsubstituted haloalkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted aryl group having 6 to 20 ring-forming carbon atoms, a substituted or unsubstituted heteroaryl group having 5 to 20 ring-forming atoms, halogen atom, cyano group, or nitro group;
• m is an integer of 0 to 4, and, when m is an integer of 2 to 4, R groups may be the same or different and an adjacent pair of R groups may be bonded to each other to form a substituted or unsubstituted, saturated or unsaturated linking group which completes a ring structure;
• L1 and L2 are each independently a single bond, a substituted or unsubstituted arylene group having 6 to 20 ring-forming carbon atoms, or a substituted or unsubstituted heteroarylene group having 5 to 20 ring-forming atoms, with the proviso that a substituted or unsubstituted anthracenylene group and a substituted or unsubstituted fluorenylene group are excluded;
• Ar1 is hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring-forming carbon atoms, a substituted or unsubstituted haloalkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted aryl group having 6 to 20 ring-forming carbon atoms, or a substituted or unsubstituted heteroaryl group having 5 to 20 ring-forming atoms, with the proviso that an anthracenyl group, carbazolyl group, azacarbazolyl group, benzimidazolyl group, dibenzofuryl group, and dibenzothienyl group are excluded;
• Ar2 is hydrogen atom, a substituted or unsubstituted aryl group having 6 to 20 ring-forming carbon atoms, or a substituted or unsubstituted heteroaryl group having 5 to 20 ring-forming atoms, with the proviso that an anthracenyl group is excluded;
• n is an integer of 0 to 4, and, when n is 0, L1 is not a single bond and Ar1 is not hydrogen atom, and, when n is an integer of 2 to 4, Ar2 groups and L2 groups may be the same or different, respectively;
• Z is -L3-Ar3;
• L3 is a substituted or unsubstituted arylene group having 6 to 20 ring-forming carbon atoms, with the proviso that a substituted or unsubstituted anthracenylene group and a substituted or unsubstituted fluorenylene group are excluded;
• Ar3 is a substituted or unsubstituted aryl group having 6 to 20 ring-forming carbon atoms or a substituted or unsubstituted heteroaryl group having 6 to 20 ring-forming atoms, with the proviso that an anthracenyl group, carbazolyl group, azacarbazolyl group, benzimidazolyl group, dibenzofuryl group, and dibenzothienyl group are excluded;
• wherein at least one of Ar1 to Ar3 is a monovalent group which is formed from any of:
• by removing a hydrogen atom from a ring carbon,
• L1 and L2 cannot be a single bond at the same time, and Ar1 and Ar2 cannot be a hydrogen atom at the same time.