Boron-containing organic compound and applications thereof, organic mixture, and organic electronic device

An organic electronic device, comprising a functional layer comprising a boron-containing organic compound having a general formula (1) as following:

• wherein,
• Ar1 to Ar7 are the same or different, and Ar1 to Ar7 are independently selected from the group consisting of aromatic ring system containing 2 to 20 carbon atoms, heteroaromatic ring system containing 2 to 20 carbon atoms, and non-aromatic ring system containing 2 to 20 carbon atoms;
• and Ar1 to Ar7 have a group R1 on rings thereof, the group R1 is the same or different at each occurrence;
• L1 to L6 are the same or different, and L1 to L6 are independently selected from the group consisting of a hydrogen, a linear alkane containing 1 to 15 carbon atoms, a branched alkane containing 1 to 15 carbon atoms, a cycloalkane containing 1 to 15 carbon atoms, an aromatic ring system containing 2 to 20 carbon atoms, a heteroaromatic ring system containing 2 to 20 carbon atoms, and a non-aromatic ring system containing 2 to 20 carbon atoms;
• and when one or more of Y1 to Y6 are a single bond or a doubly-bridging group, the corresponding L is not present;
• Y1 to Y6 are the same or different, Y1 to Y6 are independently selected from the group consisting of a single bond, a doubly-bridging group, and a triply-bridging group, and Y1 to Y6 are independently linked to three adjacent groups thereof by a single bond or a double bond;
• R1 is selected from the group consisting of —H, —F, —Cl, Br, I, -D, —CN, —NO2, —CF3, B(OR2)2, Si(R2)3, a linear alkane group, an alkane ether group, an alkane thioether group containing 1 to 10 carbon atoms, a branched alkane group, and a cycloalkane group;
• R2 is one or more selected from the group consisting of H, D, a linear alkyl group containing 1 to 20 carbon atoms, an alkoxy group containing 1 to 20 carbon atoms, a thioalkoxy group containing 1 to 20 carbon atoms, a branched alkyl group containing 3 to 20 carbon atoms, a cyclic alkyl group containing 3 to 20 carbon atoms, a silyl group containing 3 to 20 carbon atoms, a substituted keto group containing 1 to 20 carbon atoms, an alkoxy carbonyl group containing 2 to 20 carbon atoms, an aryloxy carbonyl group containing 7 to 20 carbon atoms, a cyano group, a carbamoyl group, a haloformyl group, a formyl group, an isocyano group, an isocyanate group, a thiocyanate group, an isothiocyanate group, a hydroxyl group, a nitro group, a CF3 group, Cl, Br, F, a crosslinkable group, a substituted or unsubstituted aromatic ring system containing 5 to 40 ring atoms or a substituted or unsubstituted heteroaromatic ring system containing 5 to 40 ring atoms, and an aryloxy group containing 5 to 40 ring atoms or a heteroaryloxy group containing 5 to 40 ring atoms;
• wherein at least one of R2 forms a monocyclic or polycyclic aliphatic or aromatic ring with a ring bonded to the group, or a plurality of R2 form a monocyclic or polycyclic aliphatic or aromatic ring with each other;
• n is selected from 0, 1, or 2;
• m is selected from 0, 1, or 2.