Compound for organic optoelectronic device, composition for organic optoelectronic device, organic optoelectronic device and display apparatus

A compound for an organic optoelectronic device, the compound being represented by Chemical Formula 1:

• wherein, in Chemical Formula 1,
• X1 to X3 are independently N or CRa,
• at least two of X1 to X3 are N,
• Y1 is O or S,
• Ar is a substituted or unsubstituted C6 to C30 aryl group,
• Ra and R1 to R3 are independently hydrogen, deuterium, a substituted or unsubstituted C1 to C10 alkyl group, a substituted or unsubstituted C6 to C30 aryl group, or a combination thereof,
• R4 to R8 are independently hydrogen, deuterium, a cyano group, a nitro group, a substituted or unsubstituted C1 to C10 alkyl group, a substituted or unsubstituted C6 to C30 aryl group, a substituted or unsubstituted pyridinyl group, a substituted or unsubstituted quinolinyl group, a substituted or unsubstituted isoquinolinyl group, a substituted or unsubstituted dibenzofuranyl group, a substituted or unsubstituted dibenzothiophenyl group, or a combination thereof,
• R4 to R8 are independently present or adjacent groups thereof are linked with each other to provide a substituted or unsubstituted aliphatic, aromatic, or heteroaromatic monocyclic ring or polycyclic ring,
• n1 to n3 are independently an integer of 0 to 2,
• in case of n1+n2+n3=0, adjacent groups of R4 to R8 are linked with each other to provide a substituted or unsubstituted aliphatic, aromatic, or heteroaromatic monocyclic ring or polycyclic ring, and
• the “substituted” refers to replacement of at least one hydrogen by deuterium, a C1 to C20 alkyl group, a C6 to C30 aryl group, a substituted or unsubstituted pyridinyl group, a substituted or unsubstituted quinolinyl group, a substituted or unsubstituted isoquinolinyl group, a substituted or unsubstituted dibenzofuranyl group, or a substituted or unsubstituted dibenzothiophenyl group.