Patent ID: 8404364

Claim:
An organic electroluminescent element comprising a compound having a partial structure represented by Formula (3) in the molecule: wherein R 1 is an aromatic hydrocarbon group or an aromatic heterocyclic group substituted by a substituent having 4 to 20 carbon atoms a formula weight of 70 to 350, and substituent is selected from the group consisting of: an alkyl group, an alkoxyl group, a cycloalkyl group, an aryl group and an aromatic heterocyclic group; R 2 , R 3 and R 6 are each independently a substituent; n2 is an integer of 0 to 4; n3 is an integer of 0 to 2; and n6 an integer of 0 to 6; and X is a chalcogen atom.