| abstract |
An organic electroluminescent element comprising a metal complex represented by Formula (1), n n n n n n n n n n n n wherein Z is a hydrocarbon ring or a heterocyclic ring, provided that each of the hydrocarbon ring and the heterocyclic ring has a substituent having a steric parameter (Es) of −0.5 or less at the third atom of the ring counted from a nitrogen atom attached to Z, the nitrogen atom being counted as the first atom, X, Y, A, B, X 1 -L1-X 2 , M 1 , m1 and m2 are described in the specification. |