A material for a light emitting device which is a compound represented by the following formula (I): ##STR1## wherein Ar.sup.1 and Ar.sup.6, which are the same or different, each represents a divalent aryl group or a divalent heterocyclic group; R.sup.2, R.sup.3, R.sup.7 and R.sup.8, which are the same or different, each represents an aryl group, a heterocyclic group or an aliphatic hydrocarbon group; R.sup.4a, R.sup.5a, R.sup.9a and R.sup.10a, which are the same or different, each represents a hydrogen atom or a monovalent group, and at least one of R.sup.4a, R.sup.5a, R.sup.9a and R.sup.10a represents an electron withdrawing group having a Hammett's .sigma..sub.p value of 0.2 or more; at least two of Ar.sup.1, R.sup.2, R.sup.3, R.sup.4a, and R.sup.5a may be linked to form a ring; at least two of R.sup.9a, R.sup.10a, Ar.sup.6, R.sup.7, and R.sup.8 may be linked to form a ring; at least two of R.sup.4a, R.sup.5a, R.sup.9a and R.sup.10a may be linked to form a ring; L.sup.1 represents (i) a divalent monocyclic or bicyclic aryl group, or a divalent monocyclic or bicyclic aryl group to which a heterocyclic ring is condensed, (ii) a divalent heterocyclic group, or (iii) a divalent group comprising one of two divalent aryl groups, two divalent heterocyclic groups, and a divalent aryl group and a divalent heterocyclic group, which groups are each connected by a single bond, a vinyl group, a C.dbd.X group, a silyl group, an aryl group, a 6-membered aromatic heterocyclic group, a 5-membered aromatic heterocyclic group comprising a carbon atom, a nitrogen atom and an oxygen atom, or the combination of these groups; L.sup.1 and at least one of R.sup.4a and R.sup.5a may be linked to form a ring; L.sup.1 and at least one of R.sup.9a and R.sup.10a may be linked to form a ring; X represents an oxygen atom, a sulfur atom, N--R.sup.x1 or CR.sup.x2 R.sup.x3 ; and R.sup.x1, R.sup.x2 and R.sup.x3, which are the same or different, each represents a hydrogen atom or a substituent.