Guest selectivity in the supramolecular host networks fabricated by van der Waals force and hydrogen bond
作者机构：CAS Key Laboratory of Standardization and Measurement far Nanotechnology CAS Center for Excellence in Nanoscience National Center far Nanoscience and Technology (NCNST) No. 11 ZhongguancunBeiyitiao Beijing 100190 China Guangdong Engineering and Technology Research Center for Advanced Nanomaterials School of Environment and Civil Engineering Dongguan University of Technology Dongguan 523808 China Center of Materials Science and Optoelectonics Engineering University of Chinese Academy of Sciences Beijing 100049 China
出 版 物：《Nano Research》 (纳米研究（英文版）)
年 卷 期：2019年第12卷第3期
页 面：537-542页
核心收录：
学科分类：0808[工学-电气工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 07[理学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学]
基 金：National Basic Research Program of China (Nos. 2016YFA0200700 and 2017YFA0205000) National Natural Science Foundation of China (Nos. 21472029 and 21773041)
主 题：selective adsorption COR host-guest architecture
摘 要：Here, the structural transformations of H4ETTC induced by coronene (COR) and selective adsorption behaviors of COR in different templates were investigated by seanning tunnelling microscope (STM). It was discovered that the assembled architecture of H4ETTC at the HOPG/ heptanoic acid interface depended on the concentration of COR, and the clusters of COR were obtained in the kagome nanoporous network of H4ETTC molecules at a high concentration of COR solution. In addition, COR clusters can also be formed in the hexagonal porous structure of hexaphenylbenzene (HPB) molecules modified by alkyl chains at the HOPG/heptanoic acid interface. When both H4ETTC and HPB assembly structures, based on hydrogen bonding and van der Waals force respectively, were selected as the host templates, COR showed selectivity for HPB template to form HPB/COR hexagonal host-guest architecture. Density functional theory (DFT) calculations were also performed to disclose the mechanisms involved.
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