An unusual phase sequence of iso liq-blue phase-smectic A observed for novel binaphthyl mesogenic derivatives
作者:Juri Rokunohe、Atsushi Yoshizawa
DOI:10.1039/b410931g
日期:——
A homologous series of novel chiral dimeric compounds, (R)-2,2′-bis6-[4-(2-(2-fluoro-4-butyloxyphenyl)pyrimidine-5-yl)phenyloxy]alkyloxy}-1,1′-binaphthyl, has been prepared and the physical properties investigated. The binaphthyl derivatives with an even number of atoms in the spacers showed a chiral nematic phase, however, those with an odd number of atoms showed an unusual direct blue phase to smectic A phase transition.
制备了一系列新颖的手性二聚化合物(R)-2,2'-双6-[4-(2-(2-氟-4-丁氧基苯)嘧啶-5-基)苯氧基]烷氧基}-1,1'-联萘,并研究了它们的物理性质。其中,间隔链中含有偶数个原子的联萘衍生物呈现出手性向列相,而含有奇数个原子的衍生物则表现出从独特的直接蓝相到胆甾相A相的转变。