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合成了以酰胺键为中心桥键的１,３,４－噻二唑衍生物３个系列共１６个新化合物．液晶性质测试表明,它们均为具有高相变温度和宽相变范围的稳定液晶化合物．说明极性的酰胺键有利于介晶性能．比较了端某碳原子数目的多寡对Ｓｃ相相变温度的影响．
A total of 16 new compounds were synthesized from 3 series of 1,3,4-thiadiazole derivatives with amide bond as the central bridge. Liquid-crystalline properties tests show that they are all stable liquid crystal compounds with a high phase transition temperature and a wide range of phase transitions. The polar amide bond is conducive to the mesogenic properties. The effect of the number of carbon atoms on the phase transition temperature of Sc was compared.