Compound, material for organic electroluminescent devices, organic electroluminescent device, and electronic apparatus

A compound represented by the following formula (1):

• wherein
• the carbon atom ** constitutes a 6-membered ring along with Y1 to Y5,
• Y1 to Y5 each independently represent a nitrogen atom or CR, and two or more selected from Y1 to Y5 are nitrogen atoms, in the case where plural CR's exist, R's in the plural CR's are the same as or different from each other,
• R, R1 to R6, R7 to R10, Ara, and Arb each independently represent a hydrogen atom or a substituent A, one selected from R7 to R10 is a single bond bonding to *a,
• the substituent A is
• a halogen atom,
• a nitro group,
• a cyano group,
• a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms,
• a substituted or unsubstituted alkenyl group having 2 to 50 carbon atoms,
• a substituted or unsubstituted alkynyl group having 2 to 50 carbon atoms,
• a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms,
• a group represented by —Si(R901)(R902)(R903),
• a group represented by —O—(R904),
• a group represented by —S—(R905),
• a group represented by —N(R906)(R907),
• a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or
• a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms,
• R901 to R907 each independently represent
• a hydrogen atom,
• a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms,
• a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms,
• a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, or
• a substituted or unsubstituted heterocyclic group having 5 to 50 ring atoms,
• in the case where two or more R901's exist, the two or more R901's are the same as or different from each other,
• in the case where two or more R902's exist, the two or more R902's are the same as or different from each other,
• in the case where two or more R903's exist, the two or more R903's are the same as or different from each other,
• in the case where two or more R904's exist, the two or more R904's are the same as or different from each other,
• in the case where two or more R905's exist, the two or more R905's are the same as or different from each other,
• in the case where two or more R906's exist, the two or more R906's are the same as or different from each other,
• in the case where two or more R907's exist, the two or more R907's are the same as or different from each other,
• R1 to R6, and R7 to R10 not bonding to *a do not bond to each other to form a cyclic structure,
• in the case where plural CR's exist, two neighboring R's bond to each other to form a substituted or unsubstituted cyclic structure, or do not bond to each other and therefore do not form a cyclic structure,
• L1 represents a substituted or unsubstituted, (2+p)-valent aromatic hydrocarbon ring having 6 to 12 ring carbon atoms,
• L2 represents a substituted or unsubstituted, (2+q)-valent aromatic hydrocarbon ring having 6 to 12 ring carbon atoms,
• when L1 is a (2+p)-valent residue of a naphthalene, L2 is not a (2+q)-valent residue of a naphthalene, and when L2 is a (2+q)-valent residue of a naphthalene,
• L1 is not a (2+p)-valent residue of a naphthalene,
• m represents 0 or 1,
• n represents 0 or 1, provided that
• when m and n are 0, the carbon ** bonds to *a,
• when m is 0 and n is 1, L2 bonds to *a and the carbon atom **,
• when n is 0 and m is 1, L1 bonds to *a and the carbon atom **,
• p represents 0, 1, 2 or 3,
• q represents 0, 1, 2 or 3, provided that
• when p is 2 or more, the plural Ara's are the same as or different from each other,
• when q is 2 or more, the plural Arb's are the same as or different from each other.