AROMATIC HETEROCYCLE DERIVATIVE AND ORGANIC ELECTROLUMINESCENT ELEMENT USING SAME

摘要

An aromatic heterocyclic derivative represented by the following formula (1)-1 or (1)-2:
wherein in the formula (1)-1 or (1)-2,
A is a substituted or unsubstituted nitrogen-containing heterocyclic group including 2 to 30 ring carbon atoms;
B is a substituted or unsubstituted aromatic hydrocarbon group including 6 to 30 ring carbon atoms or a substituted or unsubstituted aromatic heterocyclic group including 2 to 30 ring carbon atoms;
n is an integer of 2 or more; and
Czs are independently an aromatic heterocyclic group including a predetermined structure.