有机化学 ›› 2000, Vol. 20 ›› Issue (3): 372-376. 上一篇    下一篇

研究论文

新型噻二唑类液晶的合成与研究

商永嘉;陆友梅;何勇;丁晖;陆婉芳   

  1. 安徽师范大学有机化学研究所.安徽(241000);南京大学化学化工学院
  • 发布日期:2000-06-25

Synthesis and properties of new thiadiazole liquid crystalline compounds

Shang Yongjia;Lu Youmei;He Yong;Ding Hui;Lu Wanfang   

  1. Anhui Normal Univ, Inst Organ Chem.Anhui(241000)
  • Published:2000-06-25

合成了以酰胺键为中心桥键的三芳环1,3,4-噻二环系共8个新化合物。液晶性质测试证明它们均为具有高相变温度和宽相变范围的稳定的液晶化合物。

关键词: 噻二唑P, 液晶, 三环烃, 酰胺, 桥键

Eight 2, 5-bisphenyl-1, 3, 4-thiadiazoles were synthesized. These new liquid crystalline compounds contain amide bridge linkages. Their chemical structures were established by IR and ^1H NMR spectroscopy. The liquid crystal properties were determined by POM and DSC. The results show that they all have higher phase transition temperature and wide phase transition temperature range due to introduction of the amide linkage at the thiadiazole ring.

Key words: THIADIAZOLE P, LIQUID CRYSTAL, TRICYCLIC HYDROCARBON, AMIDES, BRIDGE BOND

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