The invention provides a method for producing an iridium complex with a high yield at a low temperature, and an organic electroluminescence device (organic EL device) having an light output high in efficiency and high luminance in a range from blue to red region. An iridium complex for the organic EL device is produced from an iridium complex having a 4-membered ring structure as an auxiliary ligand. The organic EL device is composed of at least a pair of electrodes serving as an anode and a cathode, and an organic compound layer interposed between the electrodes, and the organic compound layer contains an iridium complex represented by a following structure:
本发明提供了一种在低温下高产率制备
铱配合物的方法,以及具有从蓝色到红色区域高效率和高亮度的光输出的有机电致发光装置(有机EL装置)。该有机EL装置的
铱配合物是由具有4元环结构的
铱配合物作为辅助
配体制备而成。该有机EL装置由至少一对作为阳极和阴极的电极和介于电极之间的有机化合物层组成,其中有机化合物层含有下述结构的
铱配合物: