A compound selected from formulae S1-1 to S7-2, wherein R 11 and R 12 identically or differently denote P, P-Sp-, H, F, Cl, Br, I, -CN, -NO 2 , -NCO, -NCS, -OCN, -SCN, SF 5 or straight-chain or branched alkyl having 1 to 25 C atoms, in which, in addition, one or more non-adjacent CH 2 groups may each be replaced, independently of one another, by -C(R 0 )=C(R 00 )-, -C≡C-,-N(R 00 )-, -O- -S-, -CO-, -COO-, -O-CO-, -O-CO-O- in such a way that O and/or S atoms are not linked directly to one another, and in which, in addition, one or more H atoms may be replaced by F, Cl, Br, I, CN, P or P-Sp- P denotes a polymerisable group, R 0 and R 00 each, independently of one another, denote H or alkyl having 1 to 12 C atoms, G denotes OH or Si(OR 13 ) 3 R 13 denotes straight chain or branched alkyl having 1 to 6 C atoms, L denotes P, P-Sp-, OH, CH 2 OH, F, Cl, Br, I, -CN, -NO 2 ,-NCO, -NCS, -OCN, -SCN, -C(=O)N(R x ) 2 , -C(=O)Y 1 , -C(=O)R x , -N(R x ) 2 , optionally substituted silyl, optionally substituted aryl having 6 to 20 C atoms, or straight-chain or branched alkyl, alkoxy, alkylcarbonyl, alkoxycarbonyl, alkylcarbonyloxy or alkoxycarbonyloxy having 1 to 25 C atoms, in which, in addition, one or more H atoms may be replaced by F, Cl, or P-Sp- Y 1 denotes halogen, R x denotes P, P-Sp-, H, halogen, straight-chain, branched or cyclic alkyl having 1 to 25 C atoms, in which, in addition, one or more non-adjacent CH 2 groups may be replaced by -O-, -S-, -CO-, -CO-O-, -O-CO-, -O-CO-O- in such a way that -O- and/or -S- atoms are not linked directly to one another, and in which, in addition, one or more H atoms may be replaced by F, Cl, P or P-Sp-, an optionally substituted aryl or aryloxy group having 6 to 40 C atoms, or an optionally substituted heteroaryl or heteroaryloxy group having 2 to 40 C atoms, n is an integer from 1 to 11, r is 0, 1, 2 or 3, and s is 0, 1, 2, 3, or 4. R 11 and R 12 identically or differently denote P, P-Sp-, H, F, Cl, Br, I, -CN, -NO 2 , -NCO, -NCS, -OCN, -SCN, SF 5 or straight-chain or branched alkyl having 1 to 25 C atoms, in which, in addition, one or more non-adjacent CH 2 groups may each be replaced, independently of one another, by -C(R 0 )=C(R 00 )-, -C≡C-,-N(R 00 )-, -O- -S-, -CO-, -COO-, -O-CO-, -O-CO-O- in such a way that O and/or S atoms are not linked directly to one another, and in which, in addition, one or more H atoms may be replaced by F, Cl, Br, I, CN, P or P-Sp- P denotes a polymerisable group, R 0 and R 00 each, independently of one another, denote H or alkyl having 1 to 12 C atoms, G denotes OH or Si(OR 13 ) 3 R 13 denotes straight chain or branched alkyl having 1 to 6 C atoms, L denotes P, P-Sp-, OH, CH 2 OH, F, Cl, Br, I, -CN, -NO 2 ,-NCO, -NCS, -OCN, -SCN, -C(=O)N(R x ) 2 , -C(=O)Y 1 , -C(=O)R x , -N(R x ) 2 , optionally substituted silyl, optionally substituted aryl having 6 to 20 C atoms, or straight-chain or branched alkyl, alkoxy, alkylcarbonyl, alkoxycarbonyl, alkylcarbonyloxy or alkoxycarbonyloxy having 1 to 25 C atoms, in which, in addition, one or more H atoms may be replaced by F, Cl, or P-Sp- Y 1 denotes halogen, R x denotes P, P-Sp-, H, halogen, straight-chain, branched or cyclic alkyl having 1 to 25 C atoms, in which, in addition, one or more non-adjacent CH 2 groups may be replaced by -O-, -S-, -CO-, -CO-O-, -O-CO-, -O-CO-O- in such a way that -O- and/or -S- atoms are not linked directly to one another, and in which, in addition, one or more H atoms may be replaced by F, Cl, P or P-Sp-, an optionally substituted aryl or aryloxy group having 6 to 40 C atoms, or an optionally substituted heteroaryl or heteroaryloxy group having 2 to 40 C atoms, n is an integer from 1 to 11, r is 0, 1, 2 or 3, and s is 0, 1, 2, 3, or 4. <EOS>