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化学学报
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化学学报 ›› 1999, Vol. 57 ›› Issue (8): 931-936. 上一篇    下一篇

研究论文

单取代二茂铁有机液晶的合成、结构及刚性实对介晶性影响

胡平;赵可清;张良辅;林展如;许洪波   

  1. 四川师范大学化学系.成都(610066);中国科学院成都有机化学研究所.成都 (610041);四川大学分析测试中心.成都(610064)
  • 发布日期:1999-08-15

Mono-substituted ferrocene-containing liquid crystals---synthesis, structure characterization and effect of rigid core on the mesogenic behaviors

Hu Ping;Zhao Keqing;Zhang Liangfu;Lin Zhanru;Xu Hongbo   

  1. Sichuan Normal Univ, Dept Chem Eng.Chengdu(610066);Chengdu Inst Organ Chem, CAS.Chengdu(610041);Sichuan Univ., Center of Anal Testing. Chengdu(610064)
  • Published:1999-08-15

PDF

592

被引次数

54

合成了17个未见报道的中心桥连基为酯基、C==N基,分别含有3-4个苯环,不同刚性实长度以及不同末端链长度的二茂铁化合物,并通过DSC和偏光显微镜对其介晶性进行了表征.研究表明,末端长度对相变温度和清亮温度均有影响,但对相变温度范围影响较小,而刚性实长度对其影响却很大.当刚性实达到一定长度时,末端为H原子也具有介晶性---这是第一个无柔性末端链的金属有机液晶化合物.

关键词: 二茂铁, 液晶, 示差扫描量热法, 偏光显微镜

17 new mono-substituted ferrocene containing ester and Schiff base typescomplexes which contain 3 of 4 benzene rings, an alkoxyl group of different length and a rigid core of different length have been synthesized and characterized, and their mesogenic behaviors have been studied through DSC and optical microscope. The lengh of the terminal chain can affect the transition and clearing point temperatures of the complexes, but has little influence on the temperature range of mesophases, which depend on the length of the rigid core. When the rigid core is long enough,the complex can have liquid crystal properties even if terminal chain is H. This is the first organometallic liquid crystal compound without soft terminal chain.

Key words: FERROCENE, LIQUID CRYSTAL, DIFFERENTIAL SCANNING CALORIMETRY, POLARIZING MICROSCOPES

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