Compound containing 5-membered heterocycles, organic electronic device using same, and terminal comprising the latter

A compound represented by Formula 2 below:

• in Formula 2,
• X is O, S, C(Ra) (Rb), N(Rc), P(Rd) , Si(Re) (Rf) or Ge (Rg) (Rh), wherein Ra, Rb, Rc, Rd, Re, Rf, Rg and Rh are each independently selected from the group consisting of a C6-C60 aryl group, a fluorenyl group, a fused ring group of a C3-C60 aliphatic ring and a C6-C60 aromatic ring, a C2-C60 heterocyclic group containing at least one heteroatom selected from the group consisting of O, N, S, Si, and P, a C1-C50 alkyl group, a C2-C20 alkenyl group, a C1-C30 alkoxy group, a C6-C30 aryloxy group, and -L-N(R′)(R″),
• R1, R2, and R11 to R18 are each independently selected from the group consisting of hydrogen, deuterium, halogen, a cyano group, a C6-C60 aryl group, a fluorenyl group, a fused ring group of a C3-C60 aliphatic ring and a C6-C60 aromatic ring, a C2-C60 heterocyclic group containing at least one heteroatom selected from the group consisting of O, N, S, Si, and P, a C1-C50 alkyl group, a C2-C20 alkenyl group, a C1-C30 alkoxy group, a C6-C30 aryloxy group, and -L-N(R′)(R″),
• R21 and R22 are each independently selected from the group consisting of deuterium, halogen, a cyano group, a C6-C60 aryl group, a fluorenyl group, a fused ring group of a C3-C60 aliphatic ring and a C6-C60 aromatic ring, a C2-C60 heterocyclic group containing at least one heteroatom selected from the group consisting of O, N, S, Si, and P, a C1-C50 alkyl group, a C2-C20 alkenyl group, a C1-C30 alkoxy group, a C6-C30 aryloxy group, and -L-N(R′)(R″),
• m and n are each an integer of 0 to 3,
• wherein at least one of R1, R2, R11 to R14, R21 and R22, but not all of them, is optionally linked to an adjacent group to form a monocyclic or polycyclic ring,L is selected from the group consisting of a single bond;
• a C6-C60 arylene group;
• a fluorenyl group;
• a C2-C60 heterocyclic group containing at least one heteroatom selected from the group consisting of O, N, S, Si, and P;
• and a bivalent aliphatic hydrocarbon group, Wherein, the arylene group, the fluorenyl group, the heterocyclic group, and the bivalent aliphatic hydrocarbon group are optionally substituted by one or more substituents selected from the group consisting of a nitro group, a cyano group, a halogen group, a C1-C20 alkyl group, a C6-C20 aryl group, a C2-C20 heterocyclic group, a C1-C20 alkoxy group, and an amino group;
• R′ and R″ are each independently a C2-C60 heterocyclic group containing at least one heteroatom selected from the group consisting of O, N, S, Si, and P, a C6-C20 aryl group, or a fluorenyl group;
• with the proviso that when R1, R2, and R11 to R18 are an aryl group, a fluorenyl group, a fused ring group, a heterocyclic group, a alkyl group, a alkenyl group, a alkoxy group, or a aryloxy group, R1 to R14, Ra, Rb, Rc, Rd, Re, Rf, Rg and Rh are optionally substituted by one or more substituents selected from the group consisting of deuterium, halogen, a silane group, a boron group, a germanium group, a cyano group, a nitro group, a C1-C20 alkylthio group, a C1-C20 alkoxy group, a C1-C20 alkyl group, a C2-C20 alkenyl group, a C2-C20 alkynyl group, a C6-C20 aryl group, a C6-C20 aryl group substituted by deuterium, a C2-C20 heterocyclic group, a C3-C20 cycloalkyl group, a C7-C20 arylalkyl group, and a C8-C20 arylalkenyl group.