Novel material mixtures for use in electroluminescence

Mixtures comprising

• (A) 5-99.9% by weight of at least one polymer comprising 1-100 mol % of one or more recurring units of of formulae (1), (2), (3), or (4)
• wherein
• A is on each occurrence, identically or differently, Si, Ge, Sn or Pb;
• Y is on each occurrence, identically or differently, an aromatic or heteroaromatic ring system having up to 40 C atoms, which is optionally substituted by one or more radicals R4, a vinyl group —CR4═CR4— or —CR4═C(R4)2, an acetylene group —C≡C— or —C≡CR4 or a combination of 2 to 5 of these groups, and wherein Y is a monovalent or divalent group in formula (1) and a divalent group in formulae (3) and (4);
• R1, R2, and R3 is on each occurrence, identically or differently, H. F, CN, N(R4)2, alkyl, alkoxy or thioalkoxy group having up to 40 C atoms which are optionally substituted by R4, wherein one or more non-adjacent CH2 groups are optionally replaced by —5C═CR5—, —C≡C—, Si(R5)2, Ge(R5)2, Sn(R5)2, C═O, C═S, C═Se, C═NR5, —O—, —S—, —NR5— or —CONR5— and wherein one or more H atoms are optionally replaced by F, Cl, Br, I, CN, OH, NO2, an aromatic or heteroaromatic ring system, or an aryloxy or heteroaryloxy group, in each case having up to 40 aromatic C atoms, wherein one or more H atoms are optionally replaced by F, Cl, Br, I, CN, OH, NO2, one or more radicals R4, or a combination of 2 to 5 of these systems;
• and wherein substituents R1, R2, and/or R3 optionally define a further mono- or polycyclic, aliphatic or aromatic ring system with one another;
• R4 is on each occurrence, identically or differently, H. F, Cl, Br, I, CN, OH. NO2, alkyl, alkoxy or thioalkoxy group having up to 22 C atoms wherein one or more non-adjacent C atoms are optionally replaced by —R5C═CR5—, —C≡C—, Si(R5)2, Ge(R5)2, Sn(R52), —NR5—, —O—, —S—, —CO—O—, or —O—CO—O—, and wherein one or more H atoms are optionally replaced by F, Cl, Br, I, CN, OH, NO2 or an-aryl, heteroaryl or aryloxy group having up to 40 C atoms optionally substituted by one or more radicals R5, OH, N(R5)2, B(R5)2, or Si(R5)3;
• R5 is on each occurrence, identically or differently, H or an aliphatic or aromatic hydrocarbon radical having up to 20 C atoms;
• n is on each occurrence, identically or differently, 1, 2, 3 or 4;
• and wherein the dashed bond represents the link to the polymer;
• and
• (B) 0.1-95% by weight of one or more triplet emitters.

Mixtures comprising

• (A) 0.5-99% by weight of at least one polymer comprising 0.1-100 mol % of one or more covalently bonded triplet emitters;
• and
• (B) 1-99.5% by weight of at least one compound of the formula (1) or of the formula (5)
• wherein
• A is on each occurrence, identically or differently, Si, Ge, Sn or Pb;
• Y is on each occurrence, identically or differently, an aromatic or heteroaromatic ring system having up to 40 C atoms, which is optionally substituted by one or more radicals R4, a vinyl group) —CR4═CR4— or —CR4═C(R4)2, an acetylene group —C≡C— or —C≡—CR4 or a combination of 2 to 5 of these groups, and wherein Y is a monovalent or divalent group in formula (1) and a monovalent group in formula (5);
• R1, R2, and R3 is on each occurrence, identically or differently, H, F, CN, N(R4)2, alkyl, alkoxy or thioalkoxy group having up to 40 C atoms which are optionally substituted by R4, wherein one or more non-adjacent CH2 groups are optionally replaced by —R5C═CR5—, —C≡C—, Si(R5)2, Ge(R5)2, Sn(R5)2, C═O, C═S, C═Se, C═NR5, —O—, —S—, —NR5— or —CONR5— and wherein one or more H atoms are optionally replaced by F, Cl, Br, I, CN, OH, NO2, an aromatic or heteroaromatic ring system, or an aryloxy or heteroaryloxy group, in each case having up to 40 aromatic C atoms, wherein one or more H atoms are optionally replaced by F, Cl, Br, I, CN, OH, NO2, one or more radicals R4, or a combination of 2 to 5 of these systems, and wherein substituents R1, R2, and/or R3 optionally define a further mono- or polycyclic, aliphatic or aromatic ring system with one another;
• R4 is on each occurrence, identically or differently, H, F, Cl, Br, I, CN, OH. NO2, alkyl, alkoxy or thioalkoxy group having:
• up to 22 C atoms wherein one or more non-adjacent C atoms are optionally replaced by —R5C═CR5—, —C≡C—, Si(R5)2, Ge(R5)2, Sn(R5)2, —NR5—, —O—, —S—, —CO—O—, or —O—CO—O—, and wherein one or more H atoms are optionally replaced by F, Cl, Br, I, CN, OH, NO2 or an aryl, heteroaryl or aryloxy group having up to 40 C atoms optionally substituted by one or more radicals R5, OH, N(R5)2, B(R5)2 or Si(R5)3;
• R5 is on each occurrence, identically or differently, H or an aliphatic or aromatic hydrocarbon radical having up to 20 C atoms;
• n is on each occurrence, identically or differently, 1, 2, 3 or 4;
• which is capable of forming glass-like layers at room temperature.