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dc.contributor.authorHayes, Oliver G
dc.contributor.authorWarrender, Stewart James
dc.contributor.authorCordes, David B.
dc.contributor.authorDuncan, Morven J.
dc.contributor.authorSlawin, Alexandra M. Z.
dc.contributor.authorMorris, Russell E.
dc.identifier.citationHayes , O G , Warrender , S J , Cordes , D B , Duncan , M J , Slawin , A M Z & Morris , R E 2020 , ' Preventing undesirable structure flexibility in pyromellitate metal organic frameworks ' , European Journal of Inorganic Chemistry , vol. 2020 , no. 26 , pp. 2537-2544 .
dc.identifier.otherPURE: 267778109
dc.identifier.otherPURE UUID: abe68e3c-abd7-4cf4-bb62-8c46405f5f70
dc.identifier.otherORCID: /0000-0002-9527-6418/work/74872893
dc.identifier.otherORCID: /0000-0002-5366-9168/work/74872966
dc.identifier.otherORCID: /0000-0001-7809-0315/work/74872969
dc.identifier.otherScopus: 85085569353
dc.identifier.otherWOS: 000535628900001
dc.descriptionThis project has received funding from: the European Union's Horizon 2020 research and innovation program under grant agreement No 685727; the Engineering & Physical Sciences Research Council (EPSRC) under awards EP/K005499/1 and EP/K039210/1; and the University of St Andrews School of Chemistry.en
dc.description.abstractRemoval of coordinated water molecules from the porous Zn‐pyromellitate metal organic framework Zn5(OH)2(PMA)2(H2O)4 · x H2O (PMA = pyromellitic acid or 1,2,4,5‐benzene tetracarboxylic acid) should generate coordinatively unsaturated metal sites suitable for gas adsorption. However, reports of instability towards dehydration have restricted the study and utility of this MOF. Here we examine in more detail the nature of the structural transformation that occurs upon dehydration. This study reveals that a fully reversible crystalline‐crystalline transformation from a porous to a non‐porous homologue takes place, proceeding through a partially dehydrated intermediate. We show that doping the structure with Ni2+ ions at greater than 30 % prevents structural rearrangement, thereby maintaining porosity, and rendering the material effective for gas (nitric oxide) adsorption applications. These results indicate that doping can be an effective means to increase the utility of otherwise unserviceable structures.
dc.relation.ispartofEuropean Journal of Inorganic Chemistryen
dc.rightsCopyright © 2020 The Authors. Published by Wiley‐VCH Verlag GmbH & Co. KGaA. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.en
dc.subjectCrystalline-crystalline transformationen
dc.subjectMetal-organic frameworksen
dc.subjectNitric oxideen
dc.subjectStructure elucidationen
dc.subjectQD Chemistryen
dc.titlePreventing undesirable structure flexibility in pyromellitate metal organic frameworksen
dc.typeJournal articleen
dc.description.versionPublisher PDFen
dc.contributor.institutionUniversity of St Andrews.School of Chemistryen
dc.contributor.institutionUniversity of St Andrews.EaSTCHEMen
dc.description.statusPeer revieweden

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