Nitrogen-containing compound, and electronic element and electronic device comprising same

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

• wherein:
• L is selected from the group consisting of single bond, unsubstituted phenylene, and unsubstituted dibenzofuranylene;
• L1, and L2 are each independently selected from the group consisting of single bond, substituted or unsubstituted phenylene, and substituted or unsubstituted biphenylene;
• substituents in L1 and L2 are identical or different, and are each independently selected from the group consisting of deuterium, fluorine, cyano, methyl, ethyl, n-propyl, isopropyl, tert-butyl, and phenyl;
• Ar1 and Ar2 are identical or different, and are each independently selected from the group consisting of substituted or unsubstituted phenyl, substituted or unsubstituted naphthyl, substituted or unsubstituted biphenyl, substituted or unsubstituted fluorenyl, substituted or unsubstituted triphenyl, substituted or unsubstituted dibenzofuranyl, substituted or unsubstituted dibenzothiophenyl, substituted or unsubstituted carbazolyl, and substituted or unsubstituted
• substituents in Ar1 and Ar2 are identical or different, and are each independently selected from the group consisting of deuterium, fluorine, cyano, methyl, ethyl, n-propyl, isopropyl, tert-butyl, phenyl, trimethylsilyl, and triphenylsilyl.