Material for organic electroluminescent devices and organic electroluminescent devices made by using the same

A material for organic electroluminescence devices which comprises a compound represented by formula (1):

• (Cz-)nMm (1)
• wherein Cz represents a substituted or unsubstituted carbazolyl group;
• M represents a substituted or unsubstituted nitrogen-containing heteroaromatic cyclic group having 2 to 40 carbon atoms;
• n and m each represent an integer of 1 to 3, a plurality of Cz may represent different groups when n represents 2 or 3, and a plurality of M may represent different groups when m represents 2 or 3;
• and
• the substituent for M is at least one group selected from the group consisting of a halogen atom, a carbazole group, a hydroxyl group, a substituted amino group, an unsubstituted amino group, a nitro group, a cyano group, a silyl group, a trifluoromethyl group, a carbonyl group, a carboxyl group, a substituted alkyl group, an unsubstituted alkyl group, a substituted alkenyl group, an unsubstituted alkenyl group, a substituted aromatic group, an unsubstituted aromatic group, a substituted aromatic heterocyclic group, an unsubstituted aromatic heterocyclic group, a substituted aralkyl group, an unsubstituted aralkyl group, a substituted aryloxy group, an unsubstituted aryloxy group, a substituted alkyloxyl group, and an unsubstituted alkyloxyl group;
• provided that M does not represent a triazine group when n represents 3 and m represents 1.