| abstract |
An organic electroluminescent element material represented by Formula (1), n Formula (1): n n n n n n n n n n wherein Z is a heterocylcic ring comprising a substituent having a steric parameter value (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; and other symbols in Formula (1) are described in the specification. |