As the polar groups,difluoroethylene not only can induce to generate the nematic phase,but also can decrease the melting point and viscosity of the liquid crystal compounds and broaden the nematic temperature range significantly,so as to accelerate the respond speed of liquid crystal displays.A new series of banana-shaped liquid crystals containing diflourovinyl as the center part through the synthesis of Grignard Cross-Coupling and Suzuki-Miyaura Cross-Coupling,the characterization via IR,MS,1H- NMR,13C -NMR and 19F – NMR spectra show tha...
