Synthesis of Functionalized Organoselenium Materials: Selenides and Diselenides Containing Cholesterol
作者:Tiago E. Frizon、Jamal Rafique、Sumbal Saba、Ivan H. Bechtold、Hugo Gallardo、Antonio L. Braga
DOI:10.1002/ejoc.201500124
日期:2015.6
A simple and efficient procedure for the synthesis of three new series of chalcogen liquid crystals, based on selenides and diselenides, containing cholesterol in their structure, is described. Thermal and liquid crystalline properties were investigated by POM, DSC, TGA and XRD scattering. Six of the nine molecules synthesized showed liquid crystal properties, with smectic mesomorphism. All the compounds
描述了一种简单有效的合成三个新系列硫属元素液晶的方法,基于硒化物和二硒化物,在其结构中含有胆固醇。通过POM、DSC、TGA和XRD散射研究热和液晶性质。合成的九个分子中有六个显示出液晶特性,具有近晶介晶现象。所有化合物均表现出良好的热稳定性。通过XRD分析证实了近晶介晶现象。通过使用原子力显微镜(AFM)研究薄膜表面的形态。所有制备的二硒化物都显示出良好的谷胱甘肽过氧化物酶样活性,其中一种二硒化物的活性是标准 Ebselen 的 3.3 倍。