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【Mol. Cryst. Liq. Cryst., 2008, 493, 65-70】Fluoro- and nitro-substitution effect of some chiral compounds
作者:Yongmin Guo, Lifeng Bi, Baozong Li, Yonggang Yang, and Jianxun Wen
关键字:chiral
论文来源:期刊
具体来源:Mol. Cryst. Liq. Cryst
发表时间:2008年

Yongmin Guo, Lifeng Bi, Baozong Li, Yonggang Yang, and Jianxun Wen

Mol. Cryst. Liq. Cryst., 2008, 493, 65-70.

 

         Four chiral compounds have been synthesized. Their phase transition behavior was investigated by differential scanning calorimetry and polarized optical microscopy. Two of them show monotropic smectic C phases. Moreover, one of them shows an enantiotropic blue phase. The lateral fluoro-substitution strongly suppressed the formation of SmC phases and decreased clearing points. Although the introduction of nitro group in the core decreased the length-diameter ratio, the temperature range of monotropic SmC phase did not change much.