Organic electroluminescence device and electronic appliance using the same
摘要
說明書
R1 and R2 may independently form a substituted or unsubstituted heterocyclic ring by bonding with the ring a, the ring b, or the ring c. The heterocyclic ring formed in this case contains a nitrogen atom constituting the central fused bicyclic structure of the formula (1). The heterocyclic ring in this case may contain a hetero atom other than the nitrogen atom. An expression “R1 and R2 are bonded with the ring a, the ring b, and the ring c” specifically means that the atoms constituting the ring a, the ring b, and the ring c are bonded with the atoms constituting R1 and R2. For example, R1 may form a fused bicyclic (or tricyclic or more) nitrogen-containing heterocyclic ring in which the ring containing R1 and the ring a is fused by bonding with the ring a. Specific examples of the nitrogen-containing heterocyclic ring include a compound corresponding to a nitrogen-containing fused heterocyclic rings constituted with 2 or more rings in the specific example group G2.
The cases when R1 is bonded with the ring b, R2 is bonded with the ring a, and R2 is bonded with the ring c are the same as above.
In one embodiment, the ring a, the ring b, and the ring c in the formula (1) are independently a substituted or unsubstituted aromatic hydrocarbon ring including 6 to 50 ring carbon atoms.
In one embodiment, the ring a, the ring b, and the ring c in the formula (1) are independently a substituted or unsubstituted benzene ring or a substituted or unsubstituted naphthalene ring.
