Nitrogen-containing compound, organic electroluminescent device, and electronic apparatus

A nitrogen-containing compound, having a structure shown in Formula 1:

• wherein:
• X is selected from S or O;
• group A is selected from a structure shown in Formula a-1 or a structure shown in Formula
• HAr is selected from substituted or unsubstituted arylene having 6 to 40 carbon atoms, and substituted or unsubstituted heteroarylene having 3 to 40 carbon atoms;
• Het is a nitrogen-containing heteroarylene having 3 to 20 carbon atoms;
• substituents in HAr are identical or different, and are each independently selected from the group consisting of deuterium, cyano, halogen, alkyl having 1 to 10 carbon atoms, deuterated alkyl having 1 to 10 carbon atoms, and aryl having 6 to 20 carbon atoms;
• L, L1, L2, and L3 are identical or different, and are each independently selected from the group consisting of single bond, substituted or unsubstituted arylene having 6 to 30 carbon atoms, and substituted or unsubstituted heteroarylene having 3 to 30 carbon atoms;
• Ar1 and Ar2 are identical or different, and are each independently selected from the group consisting of substituted or unsubstituted aryl having 6 to 40 carbon atoms, and substituted or unsubstituted heteroaryl having 3 to 40 carbon atoms;
• Ar3 is selected from the group consisting of hydrogen, substituted or unsubstituted aryl having 6 to 40 carbon atoms, and substituted or unsubstituted heteroaryl having 3 to 40 carbon atoms;
• Ar4 is selected from the group consisting of substituted or unsubstituted aryl having 6 to 40 carbon atoms, and substituted or unsubstituted heteroaryl having 3 to 40 carbon atoms, or Ar4 is single bond;
• substituents in L, L1, L2, L3, Ar1, Ar2, Ar3, and Ar4 are identical or different, and are each independently selected from the group consisting of deuterium, cyano, halogen, alkyl having 1 to 10 carbon atoms, haloalkyl having 1 to 10 carbon atoms, deuterated alkyl having 1 to 10 carbon atoms, trialkylsilyl having 3 to 12 carbon atoms, triphenylsilyl, aryl having 6 to 20 carbon atoms, heteroaryl having 3 to 20 carbon atoms, phosphonyl having 6 to 20 carbon atoms, cycloalkyl having 3 to 10 carbon atoms, alkoxy having 1 to 10 carbon atoms, alkylthio having 1 to 10 carbon atoms, aryloxy having 6 to 20 carbon atoms, and arylthio having 6 to 20 carbon atoms;
• and optionally, in Ar1, Ar2, Ar3, and Ar4, any two adjacent substituents form a saturated or unsaturated 3 to 15-membered ring;
• each R1, each R2, and each R3 is identical or different, and is independently selected from the group consisting of deuterium, cyano, halogen, alkyl having 1 to 10 carbon atoms, haloalkyl having 1 to 10 carbon atoms, deuterated alkyl having 1 to 10 carbon atoms, trialkylsilyl having 3 to 12 carbon atoms, aryl having 6 to 20 carbon atoms, heteroaryl having 3 to 20 carbon atoms, and cycloalkyl having 3 to 10 carbon atoms;
• and optionally, any two adjacent groups form a benzene ring;
• and
• n1 represents the number of R1, and is selected from 0, 1, 2, 3, or 4;
• n2 represents the number of R2, and is selected from 0, 1, 2, or 3;
• n3 represents the number of R3, and is selected from 0, 1, 2, 3, or 4.