Organic electroluminescent element material and organic electroluminescent element using same

An organic electroluminescent device material, comprising a carborane compound represented by formula (1):

• in formula (1):
• a ring CB represents a divalent carborane group —C2B10H10— represented by any one of the formula (a), the formula (b), and the formula (c), and when a plurality of rings CB are present in a molecule, the rings may be identical to or different from each other;
• R represents a substituted or unsubstituted aliphatic hydrocarbon group having 1 to 12 carbon atoms, a substituted or unsubstituted aromatic hydrocarbon group having 6 to 50 carbon atoms, or a substituted or unsubstituted aromatic heterocyclic group having 3 to 50 carbon atoms, and a plurality of R's may be identical to or different from each other;
• A represents a direct bond, an Si(R)d group, a substituted or unsubstituted aromatic hydrocarbon group having 6 to 50 carbon atoms, or a substituted or unsubstituted aromatic heterocyclic group having 3 to 50 carbon atoms, provided that A does not represent a direct bond except when p+m represents 2, and A represents a p+m-valent group when A represents a direct bond, R of the Si(R)d group has the same meaning as that of the R, and d represents an integer represented by 4−(p+m);
• and
• p represents an integer of from 0 to 3, m represents an integer of from 1 to 4, n represents an integer of from 0 to 3, and p+m represents an integer of from 1 to 4.