Isothiocyano trans-cyclohexyl biphenyl liquid crystal compound as well as preparation method and application thereof

The invention discloses an isothiocyano trans-cyclohexyl biphenyl liquid crystal compound as well as a preparation method and application thereof, the liquid crystal compound has a structure as shown in a structural formula (I): # imgabs0 #, R1 is selected from alkyl containing 1-10 carbon atoms or alkyl containing alkenyl; and X1-X8 are respectively and independently selected from-H,-CH3,-F or-Cl. The liquid crystal compound is low in dielectric loss, relatively small in rotary viscosity and wide in nematic phase liquid crystal phase state temperature range. After the high-resistivity liquid crystal component is obtained through recrystallization and electric field adsorption purification and refinement, the liquid crystal component has a relatively low dielectric loss effect under high frequency (4-40GHz), and can be used as a main component of a nematic phase mixed liquid crystal material with high dielectric anisotropy and low dielectric loss for a microwave device. 本发明公开了一种异硫氰基反式环己基联苯类液晶化合物及其制备方法和应用，该液晶化