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Low-Energy Selective Capture of Carbon Dioxide by a Pre-designed Elastic Single-Molecule Trap


  • Funding was provided by the U.S. Department of Energy (DOE DE-SC0001015 and DE-AR0000073). M.W. acknowledges the Postdoc Programme of the German Academic Exchange Service (DAAD) for his financial support. Special thanks go to C. Näther from the University of Kiel (Germany) for the crystallographic help on PCN-200-syn and A. Callejas-Tovar who carried out the IAST calculations. Use of the Advanced Photon Source, an Office of Science User Facility operated for the U.S. Department of Energy (DOE) Office of Science by Argonne National Laboratory, was supported by the U.S. DOE under Contract No. DE-AC02-06CH11357. In this context we thank K. W. Chapman for her onsite help.


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Single-molecule trap: Easy activation of the water-stable metal–organic framework PCN-200 provides a new route to low-energy selective CO2 capture through stimuli-responsive adsorption behavior. This elastic CO2 trapping effect was confirmed by single-component and binary gas-adsorption isotherms and crystallographic determination.