Polycyclic aromatic compound for organic electroluminescent device

A polycyclic aromatic compound represented by the following formula (1):

• wherein
• in the above formula (1),
• X1 and X2 each independently represent O, S or Se,
• R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, and R11 each independently represents a hydrogen atom, an alkyl, or an aryl optionally substituted by an alkyl, adjacent groups of R1 to R11 may be bonded to each other to form an aryl ring together with ring a, ring b, or ring c, at least one hydrogen atom in the aryl ring thus formed may be substituted by an alkyl,
• at least one of R1 to R11 each independently represent a group represented by the following formula (Z-1), (Z-2), (Z-3), (Z-4), (Z-5), or (Z-6):
• the group represented by each of the above formulas (Z-1) to (Z-6) is bonded to the compound represented by the above formula (1) at * in each of the formulas,
• Ar's in the above formulas (Z-1) to (Z-6) each independently represent a group represented by the following formula (Ar-1), (Ar-2), (Ar-3), (Ar-4), (Ar-5), (Ar-6), (Ar-7), (Ar-8), (Ar-9), (Ar-10), (Ar-11), or (Ar-12):
• the group represented by each of the above formulas (Ar-1) to (Ar-12) is bonded to the group represented by each of the above formulas (Z-1) to (Z-6) at * in each of the formulas,
• in the above formulas (Ar-1) to (Ar-12), X's each independently represent a hydrogen atom, an alkyl having 1 to 4 carbon atoms, an aryl having 6 to 18 carbon atoms optionally substituted by an alkyl having 1 to 4 carbon atoms, or a heteroaryl having 2 to 18 carbon atoms optionally substituted by an alkyl having 1 to 4 carbon atoms, A1 and A2 both represent hydrogen atoms or may be bonded to each other to form a spiro ring, “—Xn” in formulas (Ar-1) and (Ar-2) indicates that nX's are each independently bonded to an arbitrary position, n represents an integer of 1 to 4, and
• at least one hydrogen atom in the compound represented by the above formula (1) may be substituted by a deuterium atom.