A Robust Hydrogen-Bonded Organic Framework with 7-Fold Interpenetration Nets and High Permanent Microporosity
Wei Yang, Jia‐Xin Wang, Baoqiu Yu, Bin Li, Hailong Wang, Jianzhuang Jiang
Abstract
A robust three-dimensional HOF (HOF-15) composed of 7-fold interpenetrated dia topological networks has been fabricated by the self-assembly of 3,3′,5,5′-tetrakis(4-carboxyphenyl)-2,2′,6,6′-tetramethoxy-1,1′-biphenyl by a carboxyl dimeric hydrogen-bonding interaction, exhibiting an exceedingly high BET surface area of 1964 m2 g–1 through supercritical carbon dioxide (sc-CO2) treatment. This value is significantly higher than that (791 m2 g–1) for the solvent-degassed sample, illustrating the important role of the activation mode in the establishment of the permanent porosity of HOFs. Furthermore, C2 and C3 light hydrocarbons have been screened at 298 K to probe their separation potential.