Designing Zn(II) complexes as a support of bifunctional liquid crystal and luminescent materials
作者:María Jesús Pastor、Cristián Cuerva、Adrián Fernández-Lodeiro、Carlos Lodeiro、José A. Campo、Mercedes Cano
DOI:10.1016/j.dyepig.2017.09.039
日期:2018.2
species, which were not liquid crystals. Reactions of those diketone-based ligands with Zn(II) dichloride afforded to four new families of Zn(II) compounds. Two of them, containing the monocatenar ligands, are liquid crystal materials, showing smectic A (SmA) mesophases and so, indicating that mesomophic behaviour is induced by complexation with the metal. However, the Zn(II) complexes carrying dicatenar
制备了四个系列的1-(吡啶基)-3-(烷氧基苯基)丙烷-1,3-二酮型配体,称为L 2N1,L 2N2,L 4N1和L 4N2,并研究了它们的热行为。这些化合物已根据吡啶氮原子的位置(2或4位,2N或4N)和苯基取代基(一个或两个)上的烷基链数进行了分类。在每个家族中,烷基链从12个碳原子增加到18个。与不存在单类别配体L 2N1和L 4N1的同质性相反,发现二类别的L 2N2和L 4N2是具有层状柱状中间相的液晶(ColL)。这些是通过盘状分子的柱状排序建立的,这是通过两个半粘分子之间的互补形状来实现的。所选原型化合物的晶体结构已解决。二邻苯二酚配体表现出具有盘状形状的二聚体结构,这与上述Col L一致中间相。相比之下,发现单曲类物质具有曲棍球形状的单体化合物,它们不是液晶。这些基于二酮的配体与二氯化锌(II)的反应提供了四个新的Zn(II)化合物家族。其中两个包含单类别的配体,是液晶材