@article{Shan2023, 
author = {Wei-Long Shan and Mao-Lian Xu and Huan-Huan Hou and Peng Zhao and Qing-Yun Zhang and Meng-Jia Yin and Feng Luo},
title = {Sulfonylcalix[4]arene-based metal-organic polyhedra with hierarchical porous structures for efficient Xe/Kr separation},
year = {2023},
journal = {Nano Research},
volume = {16},
number = {2},
pages = {2536-2542},
keywords = {metal-organic polyhedral, sulfonylcalix[4]arene, hierarchical porous material, Xe/Kr, separation},
url = {https://www.sciopen.com/article/10.1007/s12274-022-4909-y},
doi = {10.1007/s12274-022-4909-y},
abstract = {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.}
}