CPC H10K 85/654 (2023.02) [C07D 251/24 (2013.01); C07D 403/04 (2013.01); C07D 403/14 (2013.01); C07D 405/04 (2013.01); C07D 405/10 (2013.01); C07D 405/14 (2013.01); C07D 407/14 (2013.01); C07D 409/04 (2013.01); C07D 409/14 (2013.01); C07D 487/04 (2013.01); C07D 491/06 (2013.01); C07D 495/04 (2013.01); C09K 11/025 (2013.01); C09K 11/06 (2013.01); H10K 85/342 (2023.02); H10K 85/615 (2023.02); H10K 85/622 (2023.02); H10K 85/624 (2023.02); H10K 85/626 (2023.02); H10K 85/657 (2023.02); H10K 85/6572 (2023.02); H10K 85/6574 (2023.02); H10K 85/6576 (2023.02); C09K 2211/1007 (2013.01); C09K 2211/1029 (2013.01); C09K 2211/185 (2013.01); H10K 50/11 (2023.02); H10K 50/121 (2023.02); H10K 50/16 (2023.02); H10K 50/18 (2023.02); H10K 2101/10 (2023.02)] | 16 Claims |
1. A mixture comprising at least one compound of the formula (1a),
![]() where the following applies to the symbols and indices used:
A is on each occurrence, identically or differently, CR or N, where a maximum of two groups A per ring stand for N and where A stands for C if the group comprising Y2 is bonded at this position;
W is on each occurrence, identically or differently, CR or N, where a maximum of two groups W stand for N, or two adjacent groups W together stand for a group of the following formula (3), where the compound of the formula (Ia) contains a maximum of one group of the formula (3),
![]() where the dashed bonds indicate the linking of this group and A has the meanings given above;
X is on each occurrence, identically or differently, CR or N, with the proviso that at least one group X stands for N;
Ar is on each occurrence, identically or differently, an aromatic or heteroaromatic ring system having 5 to 30 aromatic ring atoms, which may be substituted by one or more radicals R;
Y1 is on each occurrence, identically or differently, O, NR, S or CR2, where the radical R which is bonded to N is not equal to H;
Y2 is NR1, where the radical R1 which is bonded to N is phenyl, which may be substituted with one or more groups selected from D, F, CN or CF3, or triphenylenyl or phenanthrenyl;
Y3 is on each occurrence, identically or differently, O, NR, S or CR2, where the radical R which is bonded to N is not equal to H;
L is on each occurrence, identically or differently, a single bond or an aromatic ring system having 5 to 30 aromatic ring atoms, which may be substituted by one or more radicals R;
R is selected on each occurrence, identically or differently, from the group consisting of H, D, F, Cl, Br, I, CN, NO2, N(Ar1)2, N(R1)2, C(═O)Ar1, C(═O)R1, P(═O)(Ar1)2, P(Ar1)2, B(Ar1)2, Si(Ar1)3, Si(R1)3, a straight-chain alkyl, alkoxy or thioalkyl group having 1 to 20 C atoms or a branched or cyclic alkyl, alkoxy or thioalkyl group having 3 to 20 C atoms or an alkenyl group having 2 to 20 C atoms, each of which may be substituted by one or more radicals R1 where one or more non-adjacent CH2 groups may be replaced by R1C═CR1, Si(R1)2, C═O, C═S, C═NR1, P(═O)(R′), SO, SO2, NR1, O, S or CONR1 and where one or more H atoms may be replaced by D, F, Cl, Br, I, CN or NO2, an aromatic or heteroaromatic ring system having 5 to 40 aromatic ring atoms, which may in each case be substituted by one or more radicals R1, an aryloxy or heteroaryloxy group having 5 to 40 aromatic ring atoms, which may be substituted by one or more radicals R1, or an aralkyl or heteroaralkyl group having 5 to 40 aromatic ring atoms, which may be substituted by one or more radicals R1; two substituents R which are bonded to the same carbon atom or to adjacent carbon atoms may optionally form a monocyclic or polycyclic, aliphatic, aromatic or heteroaromatic ring system here, which may be substituted by one or more radicals R1;
Ar1 is on each occurrence, identically or differently, an aromatic or heteroaromatic ring system having 5 to 30 aromatic ring atoms, which may be substituted by one or more non-aromatic radicals R1; two radicals Ar1 which are bonded to the same N atom, P atom or B atom may also be bridged to one another here by a single bond or a bridge selected from N(R1), C(R1)2, O or S;
m is 0, 1, 2 or 3;
R1 is selected on each occurrence, identically or differently, from the group consisting of H, D, F, CN, an aliphatic hydrocarbon radical having 1 to 20 C atoms or an aromatic or heteroaromatic ring system having 5 to 30 aromatic ring atoms, in which one or more H atoms may be replaced by D, F, Cl, Br, I or CN and which may be substituted by one or more alkyl groups, each having 1 to 4 carbatoms; two or more adjacent substituents R1 may form a mono- or polycyclic, aliphatic ring system with one another here;
and at least one further compound, wherein the further compound is a matrix material which is a hole-transporting compound.
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