A compound represented by formula: wherein the group of formula represented by formula: is represented by formula or: wherein R 1 and R 2 in formulae and each represent a substituted or unsubstituted phenyl group; Ar 1 represents a group represented by formula below; and Ar 2 represents an unsubstituted 9,9-diphenylfluorenyl group; wherein in formula: X represents an oxygen atom or a sulfur atom; y is 0, that is, (L 1) 0 represents a single bond; R 3 represents a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, a substituted or unsubstituted heteroaryl group having 3 to 50 ring atoms, a halogen atom, a substituted or unsubstituted fluoroalkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted alkoxy group having 1 to 20 carbon atoms, a substituted or unsubstituted fluoroalkoxy group having 1 to 20 carbon atoms, a substituted or unsubstituted aryloxy group having 6 to 50 ring carbon atoms, or a cyano group; and m represents an integer of 0 to 4, when m is an integer of 2 to 4, two to four groups R 3 may be the same or different and may be bonded to each other to form a ring, and when m is 0, (R 3) 0 represents a hydrogen atom; wherein the optional substituent referred to by "substituted or unsubstituted" is at least one selected from the group consisting of an alkyl group having 1 to 50 carbon atoms; a cycloalkyl group having 3 to 50 ring carbon atoms; an aryl group having 6 to 50 ring carbon atoms; a mono- or di-substituted amino group wherein the substituent is selected from an alkyl group having 1 to 50 carbon atoms and an aryl group having 6 to 50 ring carbon atoms; a heteroaryl group having 5 to 50 ring atoms; a halogen atom; and a cyano group. Ar 1 represents a group represented by formula below; and Ar 2 represents an unsubstituted 9,9-diphenylfluorenyl group; wherein in formula: X represents an oxygen atom or a sulfur atom; y is 0, that is, (L 1) 0 represents a single bond; R 3 represents a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, a substituted or unsubstituted heteroaryl group having 3 to 50 ring atoms, a halogen atom, a substituted or unsubstituted fluoroalkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted alkoxy group having 1 to 20 carbon atoms, a substituted or unsubstituted fluoroalkoxy group having 1 to 20 carbon atoms, a substituted or unsubstituted aryloxy group having 6 to 50 ring carbon atoms, or a cyano group; and m represents an integer of 0 to 4, when m is an integer of 2 to 4, two to four groups R 3 may be the same or different and may be bonded to each other to form a ring, and when m is 0, (R 3) 0 represents a hydrogen atom; wherein the optional substituent referred to by "substituted or unsubstituted" is at least one selected from the group consisting of an alkyl group having 1 to 50 carbon atoms; a cycloalkyl group having 3 to 50 ring carbon atoms; an aryl group having 6 to 50 ring carbon atoms; a mono- or di-substituted amino group wherein the substituent is selected from an alkyl group having 1 to 50 carbon atoms and an aryl group having 6 to 50 ring carbon atoms; a heteroaryl group having 5 to 50 ring atoms; a halogen atom; and a cyano group. X represents an oxygen atom or a sulfur atom; y is 0, that is, (L 1) 0 represents a single bond; R 3 represents a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, a substituted or unsubstituted heteroaryl group having 3 to 50 ring atoms, a halogen atom, a substituted or unsubstituted fluoroalkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted alkoxy group having 1 to 20 carbon atoms, a substituted or unsubstituted fluoroalkoxy group having 1 to 20 carbon atoms, a substituted or unsubstituted aryloxy group having 6 to 50 ring carbon atoms, or a cyano group; and m represents an integer of 0 to 4, when m is an integer of 2 to 4, two to four groups R 3 may be the same or different and may be bonded to each other to form a ring, and when m is 0, (R 3) 0 represents a hydrogen atom; wherein the optional substituent referred to by "substituted or unsubstituted" is at least one selected from the group consisting of an alkyl group having 1 to 50 carbon atoms; a cycloalkyl group having 3 to 50 ring carbon atoms; an aryl group having 6 to 50 ring carbon atoms; a mono- or di-substituted amino group wherein the substituent is selected from an alkyl group having 1 to 50 carbon atoms and an aryl group having 6 to 50 ring carbon atoms; a heteroaryl group having 5 to 50 ring atoms; a halogen atom; and a cyano group.