abstract |
An object of the present invention is to provide a blue phosphorescent metal complex having low driving voltage, high luminous efficiency, high luminous color purity and long luminous life when used in an element. It is. Another object of the present invention is to provide an organic electroluminescent device containing the metal complex. The present invention relates to the following general formula (I): ML 1 m L 2 n (I ) And an organic electroluminescent device containing the compound. [Selection diagram] Fig. 1 |