Patent ID: 11968894
Assignee: IDEMITSU KOSAN CO., LTD.
Field: Basic materials chemistry (Chemistry)
Classification: CPC H  C | IPC C  H

Claim 14:
15. The organic electroluminescence device according to claim 1, wherein
the third compound is represented by formula (30),, , where: a is 0 or 1;
when a is 0, L2 is directly bonded to Ar2 and at least two of Ar1, Ar2, R121 to R128 are groups represented by formula (31);
when a is 1, at least two of Ar1, Ar2, R121 to R128 and R131 to R138 are groups represented by formula (31);
the rest of Ar1, Ar2, R121 to R128 and R131 to R138 except for the groups represented by formula (31) is each independently a hydrogen atom or a substituent,
when Ar1, Ar2, R121 to R128 and R131 to R138 are substituents, the substituents are each independently selected from the group consisting of a halogen atom, a cyano group, a substituted or unsubstituted aromatic hydrocarbon group having 6 to 30 ring carbon atoms, a substituted or unsubstituted heterocyclic group having 5 to 30 ring atoms, a substituted or unsubstituted alkyl group having 1 to 30 carbon atoms, a substituted or unsubstituted alkenyl group having 2 to 30 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 30 carbon atoms, a substituted silyl group, a substituted or unsubstituted trifluoroalkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted alkoxy group having 1 to 30 carbon atoms, a substituted or unsubstituted aralkyl group having 6 to 30 ring carbon atoms, and a substituted or unsubstituted aryloxy group having 6 to 30 ring atoms;
L1 and L2 are each independently a single bond or a linking group;
when L1 and L2 are linking groups, the linking groups are each independently selected from the group consisting of a substituted or unsubstituted aromatic hydrocarbon group having 6 to 30 ring carbon atoms and a substituted or unsubstituted heterocyclic group having 5 to 30 ring atoms:, , where: L11, L12 and L13 are each independently a single bond or a linking group;
when L11 to L13 are linking groups, the linking groups are selected from the group consisting of a substituted or unsubstituted aromatic hydrocarbon group having 6 to 30 ring carbon atoms and a substituted or unsubstituted heterocyclic group having 5 to 30 ring atoms; and
Ar11 and Ar12 are each independently a group selected from the group consisting of a substituted or unsubstituted aromatic hydrocarbon group having 6 to 30 ring carbon atoms and a substituted or unsubstituted heterocyclic group having 5 to 30 ring atoms.