Sulfonylcalix[4]arene-based metal-organic polyhedra with hierarchical porous structures for efficient Xe/Kr separation  

作　　者：Wei-Long Shan Mao-Lian Xu Huan-Huan Hou Peng Zhao Qing-Yun Zhang Meng-Jia Yin Feng Luo 

机构地区：[1]School of Chemistry and Chemical Engineering,Anhui University of Technology,Maanshan 243002,China [2]State key Laboratory of Nuclear Resources and Environment,School of Chemistry,Biology and Material Science,East China University of Technology,Nanchang 330013,China [3]State Key Laboratory of Structural Chemistry,Fujian Institute of Research on the Structure of Matter,Chinese Academy of Sciences,Fuzhou 350002,China

出　　处：《Nano Research》2023年第2期2536-2542,共7页纳米研究（英文版）

基　　金：supported by the National Natural Science Foundation of China(No.22101004);the Natural Science Foundation of Anhui Province(No.2008085QB62);the Shanghai Science and Technology Committee(No.19DZ2270100).

摘　　要：Multiple space from the interior of metal-organic polyhedra(MOPs),the exterior among MOPs,and the inherent nature of big organic molecules makes MOPs as promising platform with hierarchical porous structures,especially when well-elucidated reticular chemistry principles were used.Herein we describe the preparation of a series of isoreticular octahedral MOPs featuring Zn4-p-tert-butylsulfonylcalix[4]arene clusters by the metal-directed assembly of three rigid organic ligands with different lengths.Intercage hydrogen-bonds and hydrophobic interactions between sulfonylcalix[4]arene groups direct the stacking of discrete MOPs into a novel permanent hierarchical porous material.More importantly,the optimal MOP 1-Zn exhibits high adsorption capacity of Xe and excellent Xe/Kr(20/80,v/v)separation performance,as demonstrated by adsorption isotherms,breakthrough experiments,and density functional theory calculations.Additionally,grand canonical Monte Carlo(GCMC)and dispersion-corrected density functional theory(DFT-D)theoretical calculations provide molecular-level insight over the adsorption/separation mechanism.

关 键 词：metal-organic polyhedral arene hierarchical porous material Xe/Kr separation 

分 类 号：O62[理学—有机化学]