Novel supramolecular liquid crystal: synthesis of cyclodextrin-triphenylene column liquid crystal based on click chemistry

Three new cyclodextrin-triphenylene derivatives 6, 7a and 7b were designed and synthesized by introducing triphenylene unit on cyclodextrin based on click chemistry and further acylation of hydroxyl groups of cyclodextrin unit. The column liquid crystal behaviour of cyclodextrin-triphenylene 7a was observed for the first time by differential scanning calorimeter (DSC), polarizing optical microscopy (POM) and X-ray diffraction (XRD).