Patent ID: 7063901

Claim:
An organic electroluminescent device comprising: a pair of electrodes; and at least one organic layer provided between the pair of electrodes, at least one of the at least one organic layer being a light emitting layer, wherein the light-emitting layer comprises a compound represented by the formula (II): wherein Q 21 and Q 22 each represent a group necessary to form a nitrogen-containing heterocyclic ring; Y 22 represents a nitrogen atom or a substituted or unsubstituted carbon atom; M 21 represents a transition metal ion; L 21 represents a ligand; n 21 represents an integer of 1 to 3; and n 22 represents an integer of 0 to 4; with proviso that a compound in which Q 21 and Q 22 are connected together to form a porphyrin ring is excluded.