X-Ray Investigation of Discotic Mesophases of Alkylthio Substituted Triphenylenes

Abstract
Power Samples of Three Alkylthio Substituted Triphenylenes have been Investigated by X-ray diffraction. All have a hexagonal columnar Dhd phase. In one compound, a phase transition Dho Dhd is found, in which the hexagonal lattice of columns remains unaffected by the order-disorder transition within the columns.