ORGANIC ELECTROLUMINESCENCE ELEMENT MATERIAL, ORGANIC ELECTROLUMINESCENCE ELEMENT, DISPLAY DEVICE AND ILLUMINATION DEVICE

摘要

The purpose of the present invention is to provide an organic electroluminescence element material that has high triplet excitation energy and durability. This organic electroluminescence element material is characterized by containing a compound having the structure represented in general formula (1). (In general formula (1), A1-A5 are a group of atoms necessary for forming an imidazole ring, and represent carbon atoms or nitrogen atoms. B1-B5 are a group of atoms necessary for forming a 5-membered aromatic heterocyclic ring and represent carbon atoms, nitrogen atoms, oxygen atoms or sulfur atoms. L represents the bivalent linking group which links any of A2-A5 and any of B2-B5. However, the ring structure formed containing the linking group L, a portion of A1-A5 and a portion of B1-B5 is not an aromatic ring. R represents a substituent group, and m represents an integer 1-5.)