Electronic device containing at least one compound comprising structures of the formula which is sublimable and has a molecular weight of at most 5000 g/mol, where the following applies to the symbols used: all groups R and/or R 1 in formula represent a group L selected from the formulae (L-7) to (L-26), where the dashed bond marks the bonding position, g is 0, 1, 2, 3, 4 or 5, h is 0, 1, 2, 3 or 4, j is 0, 1, 2 or 3, Y stands for O or S, R 2 is on each occurrence, identically or differently, H, D, F, Cl, Br, I, CHO, C(=O)Ar 1, P(=O)(Ar 1) 2, S(=O)Ar 1, S(=O) 2 Ar 1, CN, NO 2, Si(R 3) 3, B(OR 3) 2, OSO 2 R 3, a straight-chain alkyl, alkoxy orthioalkoxy group having 1 to 10 C atoms or a branched or cyclic alkyl, alkoxy or thioalkoxy group having 3 to 10 C atoms, which may in each case be substituted by one or more radicals R 3, where one or more non-adjacent CH 2 groups may be replaced by C≡C, Si(R 3) 2, Ge(R 3) 2, Sn(R 3) 2, C=O, C=S, C=Se, P(=O)(R 3), SO, SO 2, O, S or CONR 3 and where one or more H atoms may be replaced by D, F, Cl, Br, I, CN or NO 2, or an aromatic or heteroaromatic ring system having 5 to 24 aromatic ring atoms, which may in each case be substituted by one or more radicals R 3, or an aryloxy or heteroaryloxy group having 5 to 24 aromatic ring atoms, which may be substituted by one or more radicals R 3; two or more adjacent substituents R 2 may also form a mono- or polycyclic, aliphatic or aromatic ring system with one another; Ar 1 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 2; two radicals Ar 1 which are bonded to the same phosphorus atom may also be linked to one another by a single bond or a bridge selected from B(R 3), C(R 3) 2, Si(R 3) 2, C=O, C=NR 3, C=C(R 3) 2, O, S, S=O, SO 2, N(R 3), P(R 3) and P(=O)R 3; R 3 is on each occurrence, identically or differently, H, D, F or an aliphatic, aromatic and/or heteroaromatic hydrocarbon radical having 1 to 20 C atoms, in which, in addition, H atoms may be replaced by F; two or more adjacent substituents R 3 may also form a mono- or polycyclic, aliphatic or aromatic ring system with one another; m, n are in each case, independently of one another, 0, 1 or 2; and the sum of m and n is 1 or 2. where the dashed bond marks the bonding position, g is 0, 1, 2, 3, 4 or 5, h is 0, 1, 2, 3 or 4, j is 0, 1, 2 or 3, Y stands for O or S, R 2 is on each occurrence, identically or differently, H, D, F, Cl, Br, I, CHO, C(=O)Ar 1, P(=O)(Ar 1) 2, S(=O)Ar 1, S(=O) 2 Ar 1, CN, NO 2, Si(R 3) 3, B(OR 3) 2, OSO 2 R 3, a straight-chain alkyl, alkoxy orthioalkoxy group having 1 to 10 C atoms or a branched or cyclic alkyl, alkoxy or thioalkoxy group having 3 to 10 C atoms, which may in each case be substituted by one or more radicals R 3, where one or more non-adjacent CH 2 groups may be replaced by C≡C, Si(R 3) 2, Ge(R 3) 2, Sn(R 3) 2, C=O, C=S, C=Se, P(=O)(R 3), SO, SO 2, O, S or CONR 3 and where one or more H atoms may be replaced by D, F, Cl, Br, I, CN or NO 2, or an aromatic or heteroaromatic ring system having 5 to 24 aromatic ring atoms, which may in each case be substituted by one or more radicals R 3, or an aryloxy or heteroaryloxy group having 5 to 24 aromatic ring atoms, which may be substituted by one or more radicals R 3; two or more adjacent substituents R 2 may also form a mono- or polycyclic, aliphatic or aromatic ring system with one another; Ar 1 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 2; two radicals Ar 1 which are bonded to the same phosphorus atom may also be linked to one another by a single bond or a bridge selected from B(R 3), C(R 3) 2, Si(R 3) 2, C=O, C=NR 3, C=C(R 3) 2, O, S, S=O, SO 2, N(R 3), P(R 3) and P(=O)R 3; R 3 is on each occurrence, identically or differently, H, D, F or an aliphatic, aromatic and/or heteroaromatic hydrocarbon radical having 1 to 20 C atoms, in which, in addition, H atoms may be replaced by F; two or more adjacent substituents R 3 may also form a mono- or polycyclic, aliphatic or aromatic ring system with one another; m, n are in each case, independently of one another, 0, 1 or 2; and the sum of m and n is 1 or 2.