一种碳苯型液晶基元的3D和2D超分子组装体及其热致行为
3D and 2D supramolecular assemblies and thermotropic behaviour of a carbo-benzenic mesogen.
作者信息
Zhu Chongwei, Wang Tsai-Hui, Su Chien-Jhang, Lee Shern-Long, Rives Arnaud, Duhayon Carine, Kauffmann Brice, Maraval Valérie, Chen Chun-Hsien, Hsu Hsiu-Fu, Chauvin Remi
机构信息
CNRS, LCC (Laboratoire de Chimie de Coordination), 205 route de Narbonne, BP44099, 31077 Toulouse Cedex 4, France.
出版信息
Chem Commun (Camb). 2017 May 30;53(43):5902-5905. doi: 10.1039/c7cc02430d.
Hexaalkoxy-di(phenylethynyl)-tetraphenyl-carbo-benzenes bearing six CH aliphatic chains (n = 12, 18) have been synthesized and characterized, including by single crystal XRD analysis. For n = 12, a liquid crystal behaviour was observed in the range of 109-130 °C. DSC, POM and PXRD analyses evidenced a rectangular columnar mesophase at 115 °C. The determined 3D lattice constants are consistent with 2D STM images of the so-called "carbo-mesogen" deposited on an HOPG surface.
已合成并表征了带有六个CH脂肪族链（n = 12, 18）的六烷氧基-二（苯乙炔基）-四苯基-碳苯，包括通过单晶XRD分析进行表征。对于n = 12，在109-130 °C范围内观察到液晶行为。DSC、POM和PXRD分析证明在115 °C时存在矩形柱状中间相。所确定的三维晶格常数与沉积在HOPG表面上的所谓“碳致液晶元”的二维STM图像一致。
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