writer：Yongmin Guo, Lifeng Bi, Baozong Li, Yonggang Yang, and Jianxun Wen
keywords：chiral
source：期刊
specific source：Mol. Cryst. Liq. Cryst
Issue time：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.