Synthesis and Mesomorphism of Triphenylene-Perylene Discotic Mesogenic Dyad

A novel discotic liquid crystal donor-acceptor dyad was designed and synthesized based on triphenylene and perylene units, which was linked by a flexible alkyl chain. The mesogenic properties were investigated by differential scanning calorimetry (DSC) and polarized optical microscopy (POM), and their chemical structures were determined by 1H-NMR and FT-IR. The discotic liquid crystal compound exhibited good mesomorphic properties and liquid crystal columnar phase properties, providing useful information for organic optoelectronic applications.