作者:Chih-Yin Liu、Chin-Hsu Huang、Pao-Swu Cheng、Wen-Liang Tsai
DOI:10.1002/jccs.201100220
日期:2012.1
Three series of compounds 1‐21 were prepared by using 2‐, 3‐, and 4‐pyridinemethanol as terminal group of calamitic liquid crystals. These compounds have some similarities in their phase behavior. They all exhibit SmA phase. A tilt smectic phase, SmC, will be formed when their flexible alkoxy chain is longer than hexoxy group. The profound difference between them is that the compounds 15‐17 possess
三个系列的化合物1 - 21通过使用2-,3-,和4-吡啶甲醇作为棒状液晶的末端基团来制备。这些化合物的相态相似。它们都显示SmA相。当它们的柔性烷氧基链长于己氧基时,将形成倾斜的近晶相SmC。它们之间的深刻区别在于,化合物15 - 17具有N个相位的短温度范围。化合物3和6分别具有最宽的SmA相(最高94°C)和SmC相(最高46°C)。