An organic EL device includes a luminescence layer containing, as a luminescent
material allowing a high-luminescence and high-efficiency luminescence for a long
period of time, a metal coordination compound represented by the following formula
(1): LmMLn, wherein M denotes Ir, Pt, Rh or Pd; L denotes a bidentate ligand;
L denotes a bidentate ligand different from L; m is an integer of 1, 2
or 3; and n is an integer of 0, 1 or 2 with the proviso that the sum of m and n
is 2 or 3. The partial structure MLm is represented by a formula (2) or a formula
(3) shown below, and the partial structure MLn is represented by a formula
(4) or a formula (5) shown below:
##STR1##
wherein CyN1, CyN2 and CyN3 independently denote a substituted or unsubstituted
cyclic group containing a nitrogen atom connected to M; CyN4 denotes a cyclic group
containing 8-quinoline or its derivative having a nitrogen atom connected to M;
CyC1, CyC2 and CyC3 independently denote a substituted or unsubstituted cyclic
group containing a carbon atom connected to M, with the proviso that the metal
coordination compound is represented by the formula (2) when n is 0.