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1. A compound represented by a formula (1) below,where:
n in the formula (1) is 1 or 2; Ar1 in the formula (1) is represented by a formula (2) below,where: Ar11, Ar12 and Ar13 each independently represent a substituted or unsubstituted aromatic hydrocarbon group having 6 to 30 ring carbon atoms; one of L11 and L12 represents a single bond for bonding Ar11 and Ar12, and the other one thereof represents a linking group represented by any one of formulae (2a) to (2e) below; and one of L13 and L14 represents a single bond for bonding Ar12 and Ar13, and the other one thereof represents a linking group represented by any one of the formulae (2a) to (2e) below,where R11 to R15 each independently represent a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 30 carbon atoms, a substituted or unsubstituted aromatic hydrocarbon group having 6 to 30 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 30 ring atoms;
L2 and L3 in the formula (1) each independently represent a single bond or a linking group, the linking group being a substituted or unsubstituted aromatic hydrocarbon group having 6 to 30 ring carbon atoms, a substituted or unsubstituted heterocyclic group having 5 to 30 ring atoms, a multiple linking group formed by bonding two groups selected from the group consisting of the aromatic hydrocarbon group, a multiple linking group formed by bonding three groups selected from the group consisting of the aromatic hydrocarbon group, a multiple linking group formed by bonding two groups selected from the group consisting of the heterocyclic group, a multiple linking group formed by bonding three groups selected from the group consisting of the heterocyclic group, a multiple linking group formed by bonding two groups selected from the group consisting of the aromatic hydrocarbon group and the heterocyclic group, or a multiple linking group formed by bonding three groups selected from the group consisting of the aromatic hydrocarbon group and the heterocyclic group; the aromatic hydrocarbon group or groups and the heterocyclic group or groups in the multiple linking group are mutually the same or different, and adjacent ones of the groups in the multiple linking group are optionally bonded to each other to form a ring or not bonded; Ar2 in the formula (1) represents a substituted or unsubstituted aromatic hydrocarbon group having 6 to 30 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 30 ring atoms; and Ar3 in the formula (1) is represented by a formula (3) below,where: X3 represents an oxygen atom or a sulfur atom; m is 5; R3 represents a substituent bonded to a carbon atom of a ring in a structure represented by the formula (3), R3 each independently representing a hydrogen atom, a halogen atom, a hydroxyl group, a cyano group, a substituted or unsubstituted alkyl group having 1 to 30 carbon atoms, a substituted or unsubstituted alkylsilyl group having 3 to 30 carbon atoms, a substituted or unsubstituted arylsilyl group having 6 to 60 ring carbon atoms, a substituted or unsubstituted alkoxy group having 1 to 30 carbon atoms, a substituted or unsubstituted aryloxy group having 6 to 30 ring carbon atoms, a substituted or unsubstituted alkylamino group having 2 to 30 carbon atoms, a substituted or unsubstituted arylamino group having 6 to 60 ring carbon atoms, a substituted or unsubstituted alkylthio group having 1 to 30 carbon atoms, a substituted or unsubstituted arylthio group having 6 to 30 ring carbon atoms, a substituted or unsubstituted aromatic hydrocarbon group having 6 to 30 ring carbon atoms, or a substituted or unsubstituted heterocyclic group having 5 to 30 ring atoms, adjacent ones of R3 optionally forming a ring or not; and a bond from the structure represented by the formula (3) is bonded to L3 in the formula (1). |
