CPC H10K 85/626 (2023.02) [C07F 15/0033 (2013.01); C07J 9/00 (2013.01); C07J 43/003 (2013.01); C09K 11/06 (2013.01); H10K 85/342 (2023.02); H10K 85/622 (2023.02); H10K 85/624 (2023.02); H10K 85/654 (2023.02); H10K 85/6572 (2023.02); H10K 85/6574 (2023.02); C09K 2211/1007 (2013.01); C09K 2211/1011 (2013.01); C09K 2211/1025 (2013.01); C09K 2211/1029 (2013.01); C09K 2211/1037 (2013.01); C09K 2211/1044 (2013.01); C09K 2211/1055 (2013.01); C09K 2211/1074 (2013.01); C09K 2211/185 (2013.01); H10K 50/11 (2023.02); H10K 2101/10 (2023.02)] | 15 Claims |
1. A compound of one of the formulae (1) to (4),
where the following applies to the symbols and indices used:
Y is selected from the group consisting of fluorescent emitting groups, phosphorescent emitting groups, host groups for fluorescent emitting compounds and host groups for phosphorescent emitting compounds, having a molecular weight equal or less than 3000 g/mol, and which may in each case be substituted by one or more radicals R1;
Ar is on each occurrence, identically or differently, selected from the group consisting of aromatic ring systems having 6 to 18 aromatic ring atoms, which may in each case also be substituted by one or more radicals R, where two groups Ar are allowed to be connected via a single bond or a divalent bridge;
T is on each occurrence, identically or differently selected from the group consisting of T1 to T19,
where the symbol(s) * in T1 to T19 indicates the bonding to the group(s) —(Ar)m—Y in formulae (1) to (4);
R and R1 stand on each occurrence, identically or differently, for H, D, F, Cl, Br, I, CHO, CN, NO2, a straight-chain alkyl, alkoxy or thioalkyl groups having 1 to 40 C atoms or branched or a cyclic alkyl, alkoxy or thioalkyl groups having 3 to 40 C atoms, each of which may be substituted by one or more radicals R2, where in each case one or more non-adjacent CH2 groups may be replaced by R2C═CR2, C≡, C═O, C═S, SO, SO2, O or S and where one or more H atoms may be replaced by D, F, Cl, Br, I, CN or NO2, an aromatic or heteroaromatic ring systems having 5 to 60 aromatic ring atoms, which may in each case be substituted by one or more radicals R2, or an aryloxy groups having 5 to 60 aromatic ring atoms, which may be substituted by one or more radicals R2, where two adjacent substituents R and/or two adjacent substituents R1 may form a mono- or polycyclic, aliphatic ring system or aromatic ring system, which may be substituted by one or more radicals R2;
R2 stands on each occurrence, identically or differently, for H, D, F, Cl, Br, I, CN, a straight-chain alkyl, alkoxy or thioalkyl groups having 1 to 20 C atoms or branched or cyclic alkyl, alkoxy or thioalkyl groups having 3 to 20 C atoms, where in each case one or more non-adjacent CH2 groups may be replaced by SO, SO2, O, S and where one or more H atoms may be replaced by D, F, Cl, Br or I, or an aromatic or heteroaromatic ring system having 5 to 24 C atoms;
m is on each occurrence, identically or differently, 1, 2, 3 or 4;
n is an integer from 1 to 8; and
p is on each occurrence, identically or differently, 0 or 1, with the proviso that at least one p is equal to 1 in formulae (1) and (2).
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