A Luminescent Microporous Metal–Organic Framework with Highly Selective CO₂ Adsorption and Sensing of Nitro Explosives

A luminescent microporous metal–organic framework based on a π-electron-rich tricarboxylate ligand and an In³⁺ ion has been solvothermally obtained and characterized and exhibits highly selective CO₂ adsorption over CH₄ and N₂ gases and selective sensing of the nitro explosive 2,4,6-trinitrophenol

A Lanthanum Carboxylate Framework with Exceptional Stability and Highly Selective Adsorption of Gas and Liquid

The development of porous metal–organic frameworks that can retain structural integrity under harsh physical and chemical conditions is essential from the perspective of their use in adsorption, catalysis, and sensors. Herein, a lanthanum carboxylate framework was found to exhibit exceptional stability, not only robust in boiling aqueous solutions at pH 2–12 and in boiling common organic solvents over 24 h but also stable upon ball milling for 1 h. Furthermore, this framework displayed highly selective separation for CO₂ over N₂ (<i>S</i>_ads = 940), as well as size-dependent selective adsorption behavior of water and alcohols

Two Li–Zn Cluster-Based Metal–Organic Frameworks: Strong H₂/CO₂ Binding and High Selectivity to CO₂

Two metal–organic frameworks (MOFs) {(Me₂NH₂)­[ZnLi­(PTCA)­(H₂O)]}_<i>n</i>·<i>n</i>{3DMF·C₄H₈O₂·4H₂O} (<b>1</b>) and {(Me₂NH₂)­[ZnLi­(PTCA)]}_<i>n</i>·<i>n</i>{3DMF·5H₂O} (<b>2</b>) have been constructed from Li–Zn clusters and pyrene-1,3,6,8-tetracarboxylic acid (H₄PTCA) under solvothermal conditions. Gas sorption measurements have revealed that the pore of desolvated <b>2</b> (<b>2d</b>) can strongly interact with H₂ and CO₂, with high H₂ and CO₂ adsorption heats of 15.3 and 51.9 kJ/mol, respectively. Furthermore, <b>2d</b> can selectively adsorb CO₂ over N₂ and CH₄, with high adsorption selectivity of CO₂/N₂ and CO₂/CH₄

A Two-Fold Interpenetrating Porous Metal–Organic Framework with a Large Solvent-Accessible Volume: Gas Sorption and Luminescent Properties

A luminescent porous metal–organic framework based on π-electron-rich tricarboxylate has been solvothermally prepared and characterized by Fourier transform infrared spectroscopy, thermogravimetric analysis, elemental analyses, and single-crystal X-ray diffraction analysis. This compound is a 2-fold interpenetrating framework with a large solvent-accessible volume and exhibits gas sorption behaviors for N₂, H₂, and CO₂ gases and relatively strong interactions between CO₂ and the framework. Furthermore, it also shows interesting guest-responsive luminescent changes toward different solvent molecules