Organic compound and organic electroluminescent device comprising the same

A compound of the following Chemical Formula 1:

• wherein in Chemical Formula 1,
• L1 is selected from the group consisting of a single bond, a C6˜C18 arylene group and a heteroarylene group having 5 to 18 nuclear atoms;
• any one of X1 and X2, X2 and X3, X3 and X4, and X4 and X5 bonds to a ring of the following Chemical Formula 3 to form a fused ring;
• m and n are each independently an integer of 0 to 4;
• R1, R2, and X1 to X5 not forming a fused ring with a ring of the following Chemical Formula 3 is each independently selected from the group consisting of hydrogen, deuterium, halogen, a cyano group, a nitro group, a C1˜C40 alkyl group, a C2˜C40 alkenyl group, a C2˜C40 alkynyl group, a C3˜C40 cycloalkyl group, a heterocycloalkyl group having 3 to 40 nuclear atoms, a C6˜C60 aryl group, a heteroaryl group having 5 to 60 nuclear atoms, a C1˜C40 alkyloxy group, a C6˜C60 aryloxy group, a C3˜C40 alkylsilyl group, a C6˜C60 arylsilyl group, a C1˜C40 alkylsulfonyl group, a C6˜C60 arylsulfonyl group, a C1˜C40 alkylboron group, a C6˜C60 arylboron group, a C6˜C60 arylphosphanyl group, a C6˜C60 mono or diarylphosphinyl group, a C1˜C40 alkylcarbonyl group, a C6˜C60 arylcarbonyl group and a C6˜C60 arylamine group;
• and
• the alkyl group, the alkenyl group, the alkynyl group, the aryl group, the heteroaryl group, the aryloxy group, the alkyloxy group, the cycloalkyl group, the heterocycloalkyl group, the arylamine group, the alkylsilyl group, the alkylboron group, the arylboron group, the arylphosphanyl group, the mono or diarylphosphinyl group and the arylsilyl group of R1, R2, and X1 to X5 not forming a fused ring with a ring of the following Chemical Formula 3 is each independently unsubstituted or substituted with one or more types of substituents selected from the group consisting of deuterium, halogen, a cyano group, a nitro group, a C1˜C40 alkyl group, a C2˜C40 alkenyl group, a C2˜C40 alkynyl group, a C6˜C60 aryl group, a heteroaryl group having 5 to 60 nuclear atoms, a C6˜C60 aryloxy group, a C1˜C40 alkyloxy group, a C6˜C60 arylamine group, a C3˜C40 cycloalkyl group, a heterocycloalkyl group having 3 to 40 nuclear atoms, a C1˜C40 alkylsilyl group, a C1˜C40 alkylboron group, a C6˜C60 arylboron group, a C6˜C60 arylphosphanyl group, a C6˜C60 mono or diarylphosphinyl group and a C6˜C60 arylsilyl group, and when substituted with a plurality of the substituents, these are the same as or different from each other;
• wherein in Chemical Formula 3,
• a dotted line means a part that is fused to Chemical Formula 1;
• q is an integer of 0 to 4;
• Y2 is O, S or C (R5) (R6);
• R3, R5, and R6 are each independently selected from the group consisting of hydrogen, deuterium, halogen, a cyano group, a nitro group, a C1˜C40 alkyl group, a C2˜C40 alkenyl group, a C2˜C40 alkynyl group, a C3˜C40 cycloalkyl group, a heterocycloalkyl group having 3 to 40 nuclear atoms, a C6˜C60 aryl group, a heteroaryl group having 5 to 60 nuclear atoms, a C1˜C40 alkyloxy group, a C6˜C60 aryloxy group, a C3˜C40 alkylsilyl group, a C6˜C60 arylsilyl group, a C1˜C40 alkylsulfonyl group, a C6˜C60 arylsulfonyl group, a C1˜C40 alkylboron group, a C6˜C60 arylboron group, a C6˜C60 arylphosphanyl group, a C6˜C60 mono or diarylphosphinyl group, a C1˜C40 alkylcarbonyl group, a C6˜C60 arylcarbonyl group and a C6˜C60 arylamine group;
• and
• the alkyl group, the alkenyl group, the alkynyl group, the aryl group, the heteroaryl group, the aryloxy group, the alkyloxy group, the cycloalkyl group, the heterocycloalkyl group, the arylamine group, the alkylsilyl group, the alkylsulfonyl group, the arylsulfonyl group, the alkylboron group, the arylboron group, the arylphosphanyl group, the mono or diarylphosphinyl group, the alkylcarbonyl group, the arylcarbonyl group and the arylsilyl group of R3, R5, and R6 are each independently unsubstituted or substituted with one or more types of substituents selected from the group consisting of deuterium, halogen, a cyano group, a nitro group, a C1˜C40 alkyl group, a C2˜C40 alkenyl group, a C2˜C40 alkynyl group, a C6˜C60 aryl group, a heteroaryl group having 5 to 60 nuclear atoms, a C6˜C60 aryloxy group, a C1˜C40 alkyloxy group, a C6˜C60 arylamine group, a C3˜C40 cycloalkyl group, a heterocycloalkyl group having 3 to 40 nuclear atoms, a C1˜C40 alkylsilyl group, a C1˜C40 alkylsulfonyl group, a C6˜C60 arylsulfonyl group, a C1˜C40 alkylboron group, a C6˜C60 arylboron group, a C6˜C60 arylphosphanyl group, a C6˜C60 mono or diarylphosphinyl group, a C1˜C40 alkylcarbonyl group, a C6˜C60 arylcarbonyl group and a C6˜C60 arylsilyl group, and when substituted with a plurality of the substituents, these are the same as or different from each other;
• Ar1 is a substituent represented by any one of the following Chemical Formula 13, Chemical Formula C-1 to Chemical Formula C-6,
• Z1, Z3 and Z5 are each independently N or C (R8), wherein at least one of Z1, Z3 and Z5 is N;
• o is an integer of 0 to 4;
• R8 is selected from the group consisting of hydrogen, deuterium, halogen, a cyano group, a nitro group, a C1˜C40 alkyl group, a C2˜C40 alkenyl group, a C2˜C40 alkynyl group, a C3˜C40 cycloalkyl group, a heterocycloalkyl group having 3 to 40 nuclear atoms, a C6˜C60 aryl group, a heteroaryl group having 5 to 60 nuclear atoms, a C1˜C40 alkyloxy group, a C6˜C60 aryloxy group, a C3˜C40 alkylsilyl group, a C6˜C60 arylsilyl group, a C1˜C40 alkylboron group, a C6˜C60 arylboron group, a C6˜C60 arylphosphanyl group, a C6˜C60 mono or diarylphosphinyl group and a C6˜C60 arylamine group, or bonds to adjacent groups to form a fused ring, and when R8 is present in plural numbers, these are the same as or different from each other;
• and R9 and R10 are each independently selected from the group consisting of hydrogen, deuterium, halogen, a cyano group, a nitro group, a C1˜C40 alkyl group, a C2˜C40 alkenyl group, a C2˜C40 alkynyl group, a C3˜C40 cycloalkyl group, a heterocycloalkyl group having 3 to 40 nuclear atoms, a C6˜C60 aryl group, a heteroaryl group having 5 to 60 nuclear atoms, a C1˜C40 alkyloxy group, a C6˜C60 aryloxy group, a C3˜C40 alkylsilyl group, a C6˜C60 arylsilyl group, a C1˜C40 alkylboron group, a C6˜C60 arylboron group, a C6˜C60 arylphosphanyl group, a C6˜C60 mono or diarylphosphinyl group and a C6˜C60 arylamine group;
• the alkyl group, the alkenyl group, the alkynyl group, the aryl group, the heteroaryl group, the aryloxy group, the alkyloxy group, the cycloalkyl group, the heterocycloalkyl group, the arylamine group, the alkylsilyl group, the alkylboron group, the arylboron group, the arylphosphanyl group, the mono or diarylphosphinyl group and the arylsilyl group of R8 and R10 are each independently unsubstituted or substituted with one or more types of substituents selected from the group consisting of deuterium, halogen, a cyano group, a nitro group, a C1˜C40 alkyl group, a C2˜C40 alkenyl group, a C2˜C40 alkynyl group, a C6˜C60 aryl group, a heteroaryl group having 5 to 60 nuclear atoms, a C6˜C60 aryloxy group, a C1˜C40 alkyloxy group, a C6˜C60 arylamine group, a C3˜C40 cycloalkyl group, a heterocycloalkyl group having 3 to 40 nuclear atoms, a C1˜C40 alkylsilyl group, a C1˜C40 alkylboron group, a C6˜C60 arylboron group, a C6˜C60 arylphosphanyl group, a C6˜C60 mono or diarylphosphinyl group and a C6˜C60 arylsilyl group, and when substituted with a plurality of the substituents, these are the same as or different from each other;
• and
• R11 and R12 are each independently selected from the group consisting of hydrogen, deuterium, halogen, a cyano group, a nitro group, a C1˜C40 alkyl group, a C2˜C40 alkenyl group, a C2˜C40 alkynyl group, a C3˜C40 cycloalkyl group, a heterocycloalkyl group having 3 to 40 nuclear atoms, a C6˜C60 aryl group, a heteroaryl group having 5 to 60 nuclear atoms, a C1˜C40 alkyloxy group, a C6˜C60 aryloxy group, a C3˜C40 alkylsilyl group, a C6˜C60 arylsilyl group, a C1˜C40 alkylboron group, a C6˜C60 arylboron group, a C6˜C60 arylphosphanyl group, a C6˜C60 mono or diarylphosphinyl group and a C6˜C60 arylamine group;
• and
• the alkyl group, the alkenyl group, the alkynyl group, the aryl group, the heteroaryl group, the aryloxy group, the alkyloxy group, the cycloalkyl group, the heterocycloalkyl group, the arylamine group, the alkylsilyl group, the alkylboron group, the arylboron group, the arylphosphanyl group, the mono or diarylphosphinyl group and the arylsilyl group of R11 and R12 are each independently unsubstituted or substituted with one or more types of substituents selected from the group consisting of deuterium, halogen, a cyano group, a nitro group, a C1˜C40 alkyl group, a C2˜C40 alkenyl group, a C2˜C40 alkynyl group, a C6˜C60 aryl group, a heteroaryl group having 5 to 60 nuclear atoms, a C6˜C60 aryloxy group, a C1˜C40 alkyloxy group, a C6˜C60 arylamine group, a C3˜C40 cycloalkyl group, a heterocycloalkyl group having 3 to 40 nuclear atoms, a C1˜C40 alkylsilyl group, a C1˜C40 alkylboron group, a C6˜C60 arylboron group, a C6˜C60 arylphosphanyl group, a C6˜C60 mono or diarylphosphinyl group and a C6˜C60 arylsilyl group, and when substituted with a plurality of the substituents, these are the same as or different from each other;
• provided that when Ar1 is represented by Chemical Formula C-1, R12 is not hydrogen or deuterium;
• provided that when Ar1 is represented by Chemical Formula 13, compounds meet conditions that at least one of R9 and R10 is a heteroaryl group having 5 to 60 nuclear atoms, or that L1 is a heteroarylene group having 5 to 18 nuclear atoms.