高等学校化学学报

高等学校化学学报 ›› 1995, Vol. 16 ›› Issue (3): 405.

• 论文 • 上一篇    下一篇

单臂冠醚的结构与液晶性质

覃军1, 谢明贵2, 胡子伦2, 蒋青2, 赵华明2   

  1. 1. 第三军医大学化学教研室, 重庆 630038;
    2. 四川大学化学系, 成都 610064
  • 收稿日期:1994-03-12 修回日期:1994-09-30 出版日期:1995-03-24 发布日期:1995-03-24
  • 通讯作者: 谢明贵
  • 作者简介:军军,男,31岁,博士,讲师.
  • 基金资助:

    国家自然科学基金

Structures and Liquid Crystalline Properties of Monoarmed Crown Ethers

QIN Jun1, XIE Ming-Gui2, HU Zi-Lun2, JIANG Qing2, ZHAO Hua-Ming2   

  1. 1. Department of Chemistry, Third Military Medical University, Chongqing 630038;
    2. Department of Chemistry, Sichuan University, Chengdu 610064
  • Received:1994-03-12 Revised:1994-09-30 Online:1995-03-24 Published:1995-03-24

PDF (PC)

被引次数

6

摘要： 设计并合成了3个低温冠醚液晶──单臂脂环冠醚液晶,考察了冠醚结构与液晶性质的关系,单臂冠醚液晶分子具有液晶性质应满足长径比大于3,分子具有一定的平面特性和能通过引入手性基团使单臂冠醚液晶分子产生手性近晶相等条件。

关键词: 冠醚液晶, 液晶性质, 结构

Abstract: With the aid of CPK molecular model,three monoarmed alicyclic crown ether containing 15-crown-5 unit liquid crystals (1-3) were first synthesized.The transition temperatures were TKSc*-7.5 TSc*N 18.2 TNI23.6 for 1,TKI91.1 TIN82.6TNSc*70.4 TSc*K 50.3 for 2and TKC 33.87 TCN 46.7 TNI 64.4 for 3. The relationship between structures and properties was investigated,which revealed that monoarmed crown ether liquid crystals could possess mesomorphism not only when the ratio of molecular length to diameter was larger than 3,but also the molecular plarity was required.By inserting chiral group,chiral smetic phases were resulted.It is worth mentioning that the synthesis of crown ether liquid crystals with chirality is hitherto also a new attempt.

Key words: Crown ether liquid crystals, Liquid crystalline properties, Structures

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