Composition for organic electroluminescent element, organic electroluminescent element, display and lighting

A composition comprising a compound group α for organic electroluminescent element and a solvent, wherein:

• the compound group α is constituted of at least two kinds of compounds which each have a molecular weight of 3,000 or less and have a structure comprising a plurality of aromatic ring groups linked to each other;
• the compound group α comprises a first compound α1, which is the smallest in the number of aromatic ring groups, a second compound α2, optionally a third compound α3, and optionally a fourth compound α4;
• when a structure which is the largest in the number of the aromatic ring groups, of partial structures that are common between the compound α1 and the compounds α2, α3, and α4, is taken as a basic framework, 60% or more of the structure of the compound α1 is identical with the basic framework;
• the compounds which constitute the compound group α each is mixed in an amount of 1% by weight or larger;
• and
• each of the compounds included in the compound group α is any of the compounds represented by formulae (A-5) and (A-6):
• wherein R20 to R53 each independently represent a hydrogen atom, a nitrogen atom, an oxygen atom, a sulfur atom, an aromatic hydrocarbon ring group which has 6-30 carbon atoms and may have a substituent, or a heteroaromatic ring group which has 3-30 carbon atoms and may have a substituent, with the proviso that when R20 to R53 each are a nitrogen atom, an oxygen atom, or a sulfur atom, this atom combines with part of an adjoining substituent to form a ring.