abstract |
Provided are: a material for an organic electroluminescent device, the material having excellent electron and hole injection transporting properties, and appropriately having the lowest singlet excitation energy and the lowest triplet excitation energy; and an organic EL device using the same. The material for an organic electroluminescent device is characterized by comprising a heterocyclic compound expressed by general formula (1), In general formula (1), R 1 is an aromatic hydrocarbon group having 6-30 carbon atoms, an aromatic heterocyclic group having 3-22 carbon atoms, a linked aromatic group in which 2-6 of these aromatic rings are linked, an alkyl group, or an alkoxy group; R 2 -R 5 each are an aromatic hydrocarbon group having 6-30 carbon atoms, an aromatic heterocyclic group which includes only oxygen or sulfur and has 3-22 carbon atoms, a linked aromatic group in which 2-6 of these aromatic rings are linked, an alkyl group, or an alkoxy group; and a, b, c, and d are integers of 0-2. |