作者:Damian Pociecha、Dorota Kardas、Ewa Gorecka、Jadwiga Szydlowska、Jozef Mieczkowski、Daniel Guillon
DOI:10.1039/b208892d
日期:2003.12.10
A series of molecules having a hydroxyl group attached to the end of one terminal chain were found to form a sequence of smectic antiphases, SmÃ, Sm, Sm and Cr, with a growing degree of in-plane molecular ordering. The bilayer structure of the modulated phases is due to the formation, through hydrogen bonding, of molecular dimers that are linear in shape. Moving the hydroxy group to a position closer to the molecular core resulted in a similar sequence of non-modulated, monolayer smectic phases. The related dimeric compounds in which the same mesogenic cores were covalently linked by an alkyl chain formed intercalated smectic phases.
一系列分子在其末端链上含有一个羟基团的化合物被发现能形成一系列的反相层列结构,即SmÃ、Sm、Sm和Cr,且平面内分子有序性逐渐增强。调制相的双层结构是由于通过氢键形成的线性分子二聚体的形成。将羟基团移动至更接近分子核的位置,产生了相似的非调制、单层层列相序列。相关二聚体化合物,其中相同介晶核通过烷基链共价连接,形成了交错层列相。