| abstract |
Provided are an organic EL element, an illuminating device, and a display device using an organic EL element material in which a light emission wavelength is controlled, high light emission efficiency is exhibited, and a light emission lifetime is long. Organic EL element material represented by the following general formula (1a). [Chemical 1] [Wherein, A: cyclic group, B: cyclic group, and A is a group represented by the following general formula (1b), or represented by the following general formula (1b) on the general formula (1a) As a substituent. [Chemical formula 2] In the formula, X: O, S, N—R 2 (R 2 : alkyl group, aryl group, or heteroaryl group), Z 1 , Z 2 , Z 3 , Z 4 : N or —CR 4 = (R 4 represents a hydrogen atom or a substituent.) One is N. X 1 , X 2 : C, N, O, and L 1 represent an atomic group that forms a bidentate ligand together with X 1 and X 2 . m1: 1, 2, 3, m2: 0, 1, 2, m1 + m2: 2 or 3, M 1 : Group 8-10 metal in the periodic table. ] |