Supramolecular binding and separation of hydrocarbons within a functionalized porous metal–organic framework
Top Cited Papers
- 1 December 2014
- journal article
- Published by Springer Science and Business Media LLC in Nature Chemistry
- Vol. 7 (2), 121-129
- https://doi.org/10.1038/nchem.2114
Abstract
Supramolecular interactions are fundamental to host-guest binding in many chemical and biological processes. Direct visualization of such supramolecular interactions within host-guest systems is extremely challenging, but crucial to understanding their function. We report a comprehensive study that combines neutron scattering, synchrotron X-ray and neutron diffraction, and computational modelling to define the detailed binding at a molecular level of acetylene, ethylene and ethane within the porous host NOTT-300. This study reveals simultaneous and cooperative hydrogen-bonding, π···π stacking interactions and intermolecular dipole interactions in the binding of acetylene and ethylene to give up to 12 individual weak supramolecular interactions aligned within the host to form an optimal geometry for the selective binding of hydrocarbons. We also report the cooperative binding of a mixture of acetylene and ethylene within the porous host, together with the corresponding breakthrough experiments and analysis of adsorption isotherms of gas mixtures.Keywords
This publication has 30 references indexed in Scilit:
- Selective adsorption of ethylene over ethane and propylene over propane in the metal–organic frameworks M2(dobdc) (M = Mg, Mn, Fe, Co, Ni, Zn)Chemical Science, 2013
- A partially interpenetrated metal–organic framework for selective hysteretic sorption of carbon dioxideNature Materials, 2012
- Hydrocarbon Separations in a Metal-Organic Framework with Open Iron(II) Coordination SitesScience, 2012
- Introduction to Metal–Organic FrameworksChemical Reviews, 2012
- Direct Observation and Quantification of CO 2 Binding Within an Amine-Functionalized Nanoporous SolidScience, 2010
- An Adaptable Peptide-Based Porous MaterialScience, 2010
- Metal−Organic Polyhedral Frameworks: High H2 Adsorption Capacities and Neutron Powder Diffraction StudiesJournal of the American Chemical Society, 2010
- The pervasive chemistry of metal–organic frameworksChemical Society Reviews, 2009
- High Capacity Hydrogen Adsorption in Cu(II) Tetracarboxylate Framework Materials: The Role of Pore Size, Ligand Functionalization, and Exposed Metal SitesJournal of the American Chemical Society, 2009
- Ordered porous materials for emerging applicationsNature, 2002