Materials for electronic devices

A compound of formulae (I-1), (I-2), or (I-3):

• the pyrene groups of which are optionally substituted by a radical R1 at each free position;
• Ar1 is on each occurrence, identically or differently, an aromatic or heteroaromatic ring system having 6 to 30 aromatic ring atoms, which is optionally substituted by one or more radicals R3, and wherein groups Ar1 are optionally linked via groups X;
• X is on each occurrence, identically or differently, a single bond, or a divalent group selected from an aryl or heteroaryl group having 6 to 20 aromatic ring atoms, which is optionally substituted by one or more radicals R2, or BR2, C(R2)2, —R2C═CR2—, C(═O), Si(R2)2, NR2, PR2, P(═O)R2, O, S, S(═O), S(═O)2, or, identically or differently, any combination of 2, 3, 4 or 5 of these divalent groups;
• R1 is on each occurrence, identically or differently, H, D, F, C(═O)R4, CN, Si(R4)3, N(Ar1)2, N(R4)2, P(═O)(R4)2, O Ar1, S(═O)R4, S(═O)2R4, a straight-chain alkyl or alkoxy group having 1 to 20 C atoms, a branched or cyclic alkyl or alkoxy group having 3 to 20 C atoms, or an alkenyl or alkynyl group having 2 to 20 C atoms, wherein these groups are optionally substituted by one or more radicals R4 and wherein one or more CH2 groups in these groups are optionally replaced by —R4C═CR4—, —C═C—, Si(R4)2, C═O, C═NR4, —C(═O)O—, —C(═O)NR4—, NR4, P(═O)(R4), —O—, —S—, SO, or SO2, or an aromatic or heteroaromatic ring system having 5 to 30 aromatic ring atoms, which is optionally substituted by one or more radicals R4, and wherein two or more radicals R1 are optionally linked to one another so as to define a ring;
• R2 is on each occurrence, identically or differently, H, D, F, C(═O)R4, CN, Si(R4)3, n N(R4)2, P(═O)(R4)2, S(═O)R4, S(═O)2R4, a straight-chain alkyl or alkoxy group having 1 to 20 C atoms, a branched or cyclic alkyl or alkoxy group having 3 to 20 C atoms, or an alkenyl or alkynyl group having 2 to 20 C atoms, wherein these groups are optionally substituted by one or more radicals R4 and wherein one or more CH2 groups in these groups are optionally replaced by —R4C═CR4—, —C═C—, Si(R4)2, C═O, C═NR4, —C(═O)O—, —C(═O)NR4—, NR4, P(═O)(R4), —O—, —S—, SO, or SO2, or an aromatic or heteroaromatic ring system having 5 to 30 aromatic ring atoms, which is optionally substituted by one or more radicals R4, and wherein two or more radicals R2 are optionally linked to one another so as to define a ring;
• R3 is on each occurrence, identically or differently, H, D, F, C(═O)R4, CN, Si(R4)3, N(R4)2, P(═O)(R4)2, S(═O)R4, S(═O)2R4, a straight-chain alkyl or alkoxy group having 1 to 20 C atoms, a branched or cyclic alkyl or alkoxy group having 3 to 20 C atoms, or an alkenyl or alkynyl group having 2 to 20 C atoms, where these groups are optionally substituted by one or more radicals R4 and wherein one or more CH2 groups in these groups are optionally replaced by —R4C═CR4—, —C═C—, Si(R4)2, C═O, C═NR4, —C(═O)O—, —C(═O)NR4—, NR4, P(═O)(R4), —O—, —S—, SO, or SO2, or an aromatic or heteroaromatic ring system having 5 to 30 aromatic ring atoms, which is optionally substituted by one or more radicals R4, and wherein two or more radicals R3 are optionally linked to one another so as to define a ring;
• R4 is on each occurrence, identically or differently, H, D, F or an aliphatic, aromatic or heteroaromatic organic radical having 1 to 20 C atoms, wherein one or more H atoms are optionally replaced by D or F;
• and wherein two or more radicals R4 are optionally linked to one another so as to define a ring.