Organic electroluminescent compound, organic electroluminescent material comprising the same, and organic electroluminescent device

An organic electroluminescent compound represented by the following formula 1:

• wherein,
• A ring and B ring each independently represent a substituted or unsubstituted (C6-C30)aryl or a substituted or unsubstituted (3- to 30-membered)heteroaryl;
• X1 to X3 each independently represent N or CR11;
• R2 and R11 each independently represent hydrogen, deuterium, halogen, cyano, a substituted or unsubstituted (C1-C30)alkyl, a substituted or unsubstituted (C6-C30)aryl, a substituted or unsubstituted (3- to 30-membered)heteroaryl, a substituted or unsubstituted tri(C1-C30)alkylsilyl, a substituted or unsubstituted di(C1-C30)alkyl(C6-C30)arylsilyl, a substituted or unsubstituted (C1-C30)alkyldi(C6-C30)arylsilyl, a substituted or unsubstituted tri(C6-C30)arylsilyl, a substituted or unsubstituted fused ring of an (C3-C30) aliphatic ring and an (C6-C30) aromatic ring, or -L3-N—(Ar2)(Ar3);
• or may be linked to an adjacent substituent to form a ring(s);
• L3 represents a single bond, a substituted or unsubstituted (C6-C30)arylene, or a substituted or unsubstituted (3- to 30-membered)heteroarylene;
• Ar2 and Ar3 each independently represent hydrogen, a substituted or unsubstituted (C1-C30)alkyl, a substituted or unsubstituted (C2-C30)alkenyl, a substituted or unsubstituted fused ring of an (C3-C30) aliphatic ring and an (C6-C30) aromatic ring, a substituted or unsubstituted (C6-C30)aryl, or a substituted or unsubstituted (3- to 30-membered)heteroaryl;
• L1, L2, and R3 each independently represent a single bond, a substituted or unsubstituted (C6-C30)arylene, or a substituted or unsubstituted (3- to 30-membered)heteroarylene;
• with the proviso that when R2 is linked to adjacent R11 to form a fused ring(s), 12 represents a single bond;
• Y1 represents a single bond, —O—, —S—, —N—Ar1, —R12C═CR12′—, —R13R14C—CR13′R14′—, or —CR15R16;
• provided that when L1 is linked to Y1, Y1 represents —N—;
• Ar1 represents a substituted or unsubstituted (C6-C30)aryl or a substituted or unsubstituted (3- to 30-membered)heteroaryl;
• R12 to R16, R12′, R13′, and R14′ each independently represent hydrogen, a substituted or unsubstituted (C1-C30)alkyl, a substituted or unsubstituted (C6-C30)aryl, or a substituted or unsubstituted (3- to 30-membered)heteroaryl;
• or may be linked to an adjacent substituent to form a ring(s);
• m and n each independently represent an integer of 1 or 2;
• and
• when m and n are 2 or more, each of L1 and L2 may be the same or different.