Department of Chemistry , University of South Florida , Tampa , Florida 33620 , United States.
Polymer Program, Institute Materials Science, Department of Chemical & Biomolecular Engineering , University of Connecticut , Storrs , Connecticut 06269 , United States.
J Am Chem Soc. 2019 Oct 9;141(40):16108-16116. doi: 10.1021/jacs.9b08484. Epub 2019 Sep 25.
Three dimensional (3D) supramolecules with giant cavities are attractive due to their wide range of applications. Herein, we used pentatopic terpyridine ligands with three types of coordination moieties to assemble two giant supramolecular hexagonal prisms with a molecular weight up to 42 608 and 43 569 Da, respectively. Within the prisms, two double-rimmed Kandinsky Circles serve as the base surfaces as well as the templates for assisting the self-sorting during the self-assembly. Additionally, hierarchical self-assembly of these supramolecular prisms into tubular-like nanostructures was fully studied by scanning tunneling microscopy (STM) and small-angle X-ray scattering (SAXS). Finally, these supramolecular prisms show good antimicrobial activities against Gram-positive pathogen methicillin-resistant (MRSA) and subtilis ().
三维(3D)具有大空腔的超分子因其广泛的应用而备受关注。在此,我们使用具有三种配位基团的五齿三吡啶配体组装了两个具有巨大超分子六棱柱,分子量分别高达 42608 和 43569 Da。在棱柱体内部,两个双边缘的坎迪斯基圆圈作为基底表面以及辅助自组装过程中自分类的模板。此外,通过扫描隧道显微镜(STM)和小角 X 射线散射(SAXS)充分研究了这些超分子棱柱体的分级自组装成管状纳米结构。最后,这些超分子棱柱体对革兰氏阳性病原体耐甲氧西林金黄色葡萄球菌(MRSA)和枯草芽孢杆菌()显示出良好的抗菌活性。