Patent ID: 7223484

Claim:
A compound which belong to the idealized point group S n , C n , C nv , C nh , D n , D nh or D nd with n=2, 3, 4, 5 or 6, the molar masses are in the range from 450 g/mol to 5000 g/mol and the melting points are above a temperature of 190° C., having the Formula (II) or (III), where the symbols and indices have the following meanings: the radicals R are identical on each occurrence and are each H, F, CN, a straight-chain or branched or cyclic alkyl or alkoxy group having from 1 to 20 carbon atoms, where one or more nonadjacent CH 2 groups may be replaced by —O—, —S—, —NR 1 or —CONR 2 — and one or more H atoms may be replaced by F; the radicals Ar are identical or different on each occurrence and are each an aryl or heteroaryl group which has from 3 to 30 carbon atoms and may be substituted by one or more nonaromatic radicals R; where a plurality of substituents R, both on the same ring and on the two different rings, may in turn together form a further monocyclic or polycyclic ring system; R 1 , and R 2 are identical or different and are each H or an aliphatic or aromatic hydrocarbon radical having from 1 to 20 carbon atoms; n2 is from 3 to 10, n1 is from 1 to 10, and with the proviso that they do not contain a macrocycle.