IRIDIUM COMPLEX COMPOUND, ORGANIC ELECTROLUMINESCENT DEVICE OBTAINED BY USING THE SAME, AND USES OF THE DEVICE

摘要

The present invention provides an organic EL device having a high luminous efficiency and a long life, and an iridium complex compound used for preparing the above device. The iridium complex compound is represented by the following Formula (1): (1) [in Formula (1), R<SUP>1</SUP> to R<SUP>4</SUP> are each independently a specific group; at least one of R<SUP>1</SUP> to R<SUP>4</SUP> is a group having 2 or more carbon atoms; R<SUP>5</SUP> to R<SUP>8</SUP> are each independently a specific group; and at least one of R<SUP>5</SUP> to R<SUP>8</SUP> is a specific electron-withdrawing group; (with the proviso that R<SUP>1</SUP> to R<SUP>8</SUP> are not combined with each other to form rings)].