COMPOSITION AND LIGHT-EMITTING ELEMENT IN WHICH SAME IS USED

摘要

Provided is a composition useful for manufacturing a light-emitting element having excellent light-emitting efficiency. A composition containing a compound represented by formula (1) and a phosphorescent compound. (In the formula, R1 and R2 represent a substituent group; n1 represents an integer of 1-14; Ar1 represents an arylene group or a divalent heterocyclic group; at least one among the one or more Ar1 is a group represented by formula (1-A)) (In formula (1-A), R1A to R8A represent a bond, a hydrogen atom, or a substituent group; at least one among R1A to R4A is a bond, and at least one among R5A to R8A is a bond; R91A represents a substituent group; R92A represents an aryl group or a monovalent heterocyclic group.)