A liquid crystal compound containing cyclobutyl and a linking group difluoromethyleneoxy, and a preparation method and use thereof are disclosed. The compound is as shown in Formula I. The liquid crystal compound containing cyclobutyl as a terminal group and difluoromethyleneoxy (—CF
2
O—) as a linking group in the molecular structure of Formula I according to the present invention, has not only a high dielectric anisotropy, but also importantly an extremely fast response speed and a high clearing point, which are of great significance for the formulation of a liquid crystal mixture.
本发明公开了一种含有
环丁基和连接基二
氟甲氧基的液晶化合物,以及其制备方法和用途。该化合物如公式I所示。根据本发明,液晶化合物在分子结构中含有
环丁基作为末端基和二
氟甲氧基(-
CF2O-)作为连接基,不仅具有高介电各向异性,而且非常快速的响应速度和高清晰点,这对于液晶混合物的配方具有重要意义。