Hexaalkoxytruxenes, A New Series of Disc-Like Mesogens†;

Abstract

An homologous series of hexa-n-alkoxytruxenes has been prepared with values of n from 6 to 14. Interphase transitions between solid, mesomorphic and isotropic phases were studied by hot stage microscopy and differential scanning calorimetry. X-ray diffraction measurements showed that all of the mesophases were of the same type; a hexagonal ordered columnar phase (D_ho), with an unusually large temperature range. Systematic X-ray studies were performed with respect to temperature and chain lenght.