Abstract
In order to realize biaxial mesophases, we synthesized novel straight rod-like molecules. The compounds exhibited nematic and smecticA liquid crystal phases. We investigated their liquid crystal behaviors and superstructures by polarized optical microscopy (POM), differential scanning calorimetry (DSC), and one- and two-dimentional X-ray diffraction (XRD). Some compounds in the nematic phases showed schlieren textures with all 2-brushes in the POM under a magnetic field. Further, the XRDs of some compounds in the nematic phases showed periodicies in the direction of the moleculear long axis. It was strongly suggested that the molecules had a biaxially ordered superstructure in the mesophases by using strong face - to - face perfluoroarene - arene interaction.
