| 主权项 |
1. A compound of the formula (1) to formula (4)wherein
Y is on each occurrence, identically or differently, CR1 or N; Z is equal to C if a bridge X is bonded to the group Z and is equal to Y if no bridge X is bonded to the group Z; X is on each occurrence, identically or differently, a divalent bridge selected from the group consisting of C(R1)2, C═O, C═NR1, O, S, S═O, SO2, NR100 and P(═O)R1; R1 is on each occurrence, identically or differently, H, F, Cl, Br, I, N(Ar)2, C(═O)Ar, P(═O)Ar2, S(═O)Ar, S(═O)2Ar, CR2═CR2Ar, CN, NO2, Si(R2)3, B(OR2)2, OSO2R2, a straight-chain alkyl, alkoxy or thioalkoxy group having 1 to 40 C atoms or a branched or cyclic alkyl, alkoxy or thioalkoxy group having 3 to 40 C atoms, each of which may be substituted by one or more radicals R2 and in which one or more non-adjacent CH2 groups may be replaced by R2C═CR2, C≡C, Si(R2)2, Ge(R2)2, Sn(R2)2, C═O, C═S, C═Se, C═NR2, P(═O)(R2), SO, SO2, NR2, O, S or CONR2 and in which one or more H atoms is optionally replaced by F, Cl, Br, I, CN or NO2, or an aromatic or heteroaromatic ring system having 5 to 40 aromatic ring atoms, which optionally in each case be substituted by one or more radicals R2, or an aryloxy or heteroaryloxy group having 5 to 40 aromatic ring atoms, which is optionally substituted by one or more radicals R2, or a combination of these systems; two or more adjacent substituents R1 here optionally form a mono- or polycyclic aliphatic or aromatic ring system with one another and with the proviso that at least one R1 is not hydrogen; R100 is on each occurrence, identically or differently, C(═O)Ar, P(═O)Ar2, S(═O)Ar, S(═O)2Ar, or a heteroaromatic ring system having 5 to 40 aromatic ring atoms, which optionally in each case be substituted by one or more radicals R2, or a combination of these systems; two or more adjacent substituents R100 here optionally form a mono- or polycyclic aliphatic or aromatic ring system with one another; Ar is on each occurrence, identically or differently, an aromatic or heteroaromatic ring system having 5-30 aromatic ring atoms, which is optionally substituted by one or more non-aromatic radicals R1; two radicals Ar here on the same nitrogen or phosphorus atom are optionally linked to one another by a single bond or a bridge X; R2 is on each occurrence, identically or differently, H or an aliphatic, aromatic and/or heteroaromatic hydrocarbon radical having 1 to 20 C atoms, in which, in addition, H atoms is optionally replaced by F; two or more adjacent substituents R2 here optionally forms a mono- or polycyclic aliphatic or aromatic ring system with one another; a, b, c and d are on each occurrence, identically or differently, 0 or 1, with the proviso that a+b=1 or 2 and c+d=1 or 2, where a=0 and b=0 and c=0 and d=0 in each case means that the corresponding bridge X is not present; with the exception of the following compounds: |
