Synthesis and Mesomorphic Properties of Some ω＇-Alkoxy-ω-benzoxypolyfluorotolane Compounds  

作　　者：秦川 荣国斌 余洪斌 闻建勋 

机构地区：[1]Department of Chemistry, East China University of Science and Technology, Shanghai 200237, China [2]Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China

出　　处：《Chinese Journal of Chemistry》2006年第7期910-916,共7页中国化学（英文版）

基　　金：Project supported by the National Natural Science Foundation of China （No. 29974038）

摘　　要：Abstract Four homologue series of 4-cyano- and 4-nitro-substituted benzoate-tolanes were synthesized and characterized by IR, NMR, MS spectra and elemental analysis. Their phase transition behaviors were investigated by DSC and polarized optical microscope. The effects on the mesomorphic properties of different positions of the perfluorophenyl in the molecular core unit, the terminal cyano-substituted systems and the terminal nitro-substituted ones were discussed.Abstract Four homologue series of 4-cyano- and 4-nitro-substituted benzoate-tolanes were synthesized and characterized by IR, NMR, MS spectra and elemental analysis. Their phase transition behaviors were investigated by DSC and polarized optical microscope. The effects on the mesomorphic properties of different positions of the perfluorophenyl in the molecular core unit, the terminal cyano-substituted systems and the terminal nitro-substituted ones were discussed.

关 键 词：benzoate-tolane mesomorphic property perfluorophenylene 

分 类 号：O625[理学—有机化学]