Visualizing structural transformation and guest binding in a flexible metal-organic framework under high pressure and room temperature

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dc.contributor.authorYang, Huien_ZA
dc.contributor.authorGuo, Fengen_ZA
dc.contributor.authorLama, Premen_ZA
dc.contributor.authorGao, Wen-Yangen_ZA
dc.contributor.authorWu, Huien_ZA
dc.date.accessioned2019-08-27T07:13:56Z
dc.date.available2019-08-27T07:13:56Z
dc.date.issued2018
dc.descriptionCITATION: Yang, H., et al. 2018. Visualizing structural transformation and guest binding in a flexible metal-organic framework under high pressure and room temperature. ACS Central Science, 4(9):1194-1200, doi:10.1021/acscentsci.8b00378.
dc.descriptionThe original publication is available at https://pubs.acs.org
dc.description.abstractENGLISH ABSTRACT: Understanding the effect of gas molecules on the framework structures upon gas sorption in porous materials is highly desirable for the development of gas storage and separation technologies. However, this remains challenging for flexible metal–organic frameworks (MOFs) which feature “gate-opening/gate-closing” or “breathing” sorption behaviors under external stimuli. Herein, we report such a flexible Cd-MOF that exhibits “gating effect” upon CO2 sorption. The ability of the desolvated flexible Cd-MOF to retain crystal singularity under high pressure enables the direct visualization of the reversible closed-/open-pore states before and after the structural transformation as induced by CO2 adsorption/desorption through in situ single-crystal X-ray diffraction experiments. The binding sites of CO2 molecules within the flexible MOF under high pressure and room temperature have also been identified via combined in situ single-crystal X-ray diffraction and powder X-ray diffraction studies, facilitating the elucidation of the states observed during gate-opening/gate-closing behaviors. Our work therefore lays a foundation to understand the high-pressure gas sorption within flexible MOFs at ambient temperature, which will help to improve the design efforts of new flexible MOFs for applications in responsive gas sorption and separation.en_ZA
dc.description.urihttps://pubs.acs.org/doi/abs/10.1021/acscentsci.8b00378
dc.description.versionPublisher's version
dc.format.extent7 pagesen_ZA
dc.identifier.citationYang, H., et al. 2018. Visualizing structural transformation and guest binding in a flexible metal-organic framework under high pressure and room temperature. ACS Central Science, 4(9):1194-1200, doi:10.1021/acscentsci.8b00378
dc.identifier.issn2374-7951 (online)
dc.identifier.issn2374-7943 (print)
dc.identifier.otherdoi:10.1021/acscentsci.8b00378
dc.identifier.urihttp://hdl.handle.net/10019.1/106377
dc.language.isoen_ZAen_ZA
dc.publisherAmerican Chemical Societyen_ZA
dc.rights.holderAuthors retain copyrighten_ZA
dc.subjectGas moleculesen_ZA
dc.subjectAbsorption -- Gasen_ZA
dc.subjectMetals -- Bondingen_ZA
dc.titleVisualizing structural transformation and guest binding in a flexible metal-organic framework under high pressure and room temperatureen_ZA
dc.typeArticleen_ZA
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