摘要 |
A light-emitting device such as an organic electroluminescent device is disclosed wherein a platinum complex represented by the following general formula: (wherein ring A and ring B independently represent an aromatic ring or an aromatic heterocyclic ring which may have a substituent; X represents an oxygen atom or a sulfur atom; R1, R2, R3 and R4 independently represent a hydrogen atom or a substituent; and R1 and R 2, R2 and R3, and R3 and R4 may respectively combine together to form a ring, and the thus-formed rings may further combine together to form a condensed ring) is used as a light- emitting layer material, a charge-transporting material or the like.
|