以顺式结构的４－（４’－烷基－反－环己基）－环己烷羧酸构型转换、分离生成的反式异构体为原料，合成了两个系列双环己基四环体系液晶化合物。用ＩＲ、ＮＭＲ仪等确定了这些化合物的结构，用ＤＳＣ和偏光显微镜确定了这些化合物的相态和相转变温度，讨论了化合物结构与性质的关系。 The structure of 4- (4’-alkyl-trans-cyclohexyl) -cyclohexanecarboxylic acid was converted from the cis-form and the trans-isomer was isolated and used as starting materials to synthesize two series of bicyclohexyl- Liquid crystal compounds. The structures of these compounds were determined by IR, NMR and other methods. The phase and phase transition temperatures of these compounds were determined by DSC and polarized light microscope. The relationship between structure and properties of the compounds was also discussed.