Patent ID: 8759554

Claim:
A compound of formulae (IV), (V), or (VI) wherein R is on each occurrence, identically or differently, H, D, F, Cl, Br, I, N(R 1 ) 2 , CN, NO 2 , Si(R 1 ) 3 , B(OR 1 ) 2 , C(═O)R 1 , P(═O)(R 1 ) 2 , S(═O)R 1 , S(═O) 2 R 1 , OSO 2 R 1 , a straight-chain alkyl, alkoxy or thioalkoxy group having 1 to 40 C atoms or an alkenyl group having 2 to 40 C atoms or a branched or cyclic alkyl, alkoxy or thioalkoxy group having 3 to 40 C atoms, where the said groups may each be substituted by one or more radicals R 1 and where one or more adjacent or non-adjacent CH 2 groups may be replaced by R 1 C═CR 1 , Si(R 1 ) 2 , Ge(R 1 ) 2 , Sn(R 1 ) 2 , C═O, C═S, C═Se, C═NR 1 , P(═O)(R 1 ), SO, SO 2 , NR 1 , O, S, COO or CONR 1 , or an aromatic or heteroaromatic ring system having 5 to 60 aromatic ring atoms, which may in each case be substituted by one or more radicals R 1 , or an aryloxy or heteroaryloxy group having 5 to 60 aromatic ring atoms, which may be substituted by one or more radicals R 1 , or an aralkyl or heteroaralkyl group having 5 to 60 aromatic ring atoms, which may in each case be substituted by one or more radicals R 1 ; two or more substituents R on the phenylene groups and/or on the naphthylene groups and/or on the substituents Ar here may be linked to one another and optionally form a mono- or polycyclic aliphatic or aromatic ring system; R 1 is on each occurrence, identically or differently, H, D, F, Cl, Br, I, CN or an aliphatic, aromatic or heteroaromatic organic radical having 1 to 40 C atoms, in which, in addition, one or more H atoms may be replaced by D, F, Cl, Br, I, CN, OR 2 , SR 2 or N(R 2 ) 2 , where one or more adjacent or non-adjacent CH 2 groups may be replaced by R 2 C═CR 2 , COO or CONR 2 ; two or more adjacent or non-adjacent radicals R 1 here may be linked to one another and optionally form a mono- or polycyclic, aliphatic or aromatic ring system; R 2 is on each occurrence, identically or differently, H, D or an aliphatic, aromatic or heteroaromatic organic radical having 1 to 20 C atoms, in which, in addition, one or more H atoms may be replaced by D or F; two or more adjacent or non-adjacent radicals R 2 here may be linked to one another and optionally form a mono- or polycyclic aliphatic or aromatic ring system; and Ar is on each occurrence, identically or differently, an aromatic or heteroaromatic ring system having 5 to 60 aromatic ring atoms, which is optionally substituted by one or more radicals R.