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Article: Noninvasive Substitution of K+ Sites in Cyclodextrin Metal-Organic Frameworks by Li+ Ions

TitleNoninvasive Substitution of K<sup>+</sup> Sites in Cyclodextrin Metal-Organic Frameworks by Li<sup>+</sup> Ions
Authors
Issue Date2017
Citation
Journal of the American Chemical Society, 2017, v. 139, n. 32, p. 11020-11023 How to Cite?
AbstractCo-crystallization of K+ and Li+ ions with γ-cyclodextrin (γ-CD) has been shown to substitute the K+ ion sites partially by Li+ ions, while retaining the structural integrity and accessible porosity of CD-MOF-1 (MOF, metal-organic framework). A series of experiments, in which the K+/Li+ ratio was varied with respect to that of γ-CD, have been conducted in order to achieve the highest possible proportion of Li+ ions in the framework. Attempts to obtain a CD-MOF containing only Li+ ions resulted in nonporous materials. The structural occupancy on the part of the Li+ ions in the new CD-MOF has been confirmed by single-crystal X-ray analysis by determining the vacancies of K+-ion sites and accounting for the cation/γ-CD ratio in CD-MOF-1. The proportion of Li+ ions has also been confirmed by elemental analysis, whereas powder X-ray diffraction has established the stability of the extended framework. This noninvasive synthetic approach to generating mixed-metal CD-MOFs is a promising method for obtaining porous framework unattainable de novo. Furthermore, the CO2 and H2 capture capacities of the Li+-ion-substituted CD-MOF have been shown to exceed the highest sorption capacities reported so far for CD-MOFs.
Persistent Identifierhttp://hdl.handle.net/10722/333288
ISSN
2023 Impact Factor: 14.4
2023 SCImago Journal Rankings: 5.489
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorPatel, Hasmukh A.-
dc.contributor.authorIslamoglu, Timur-
dc.contributor.authorLiu, Zhichang-
dc.contributor.authorNalluri, Siva Krishna Mohan-
dc.contributor.authorSamanta, Avik-
dc.contributor.authorAnamimoghadam, Ommid-
dc.contributor.authorMalliakas, Christos D.-
dc.contributor.authorFarha, Omar K.-
dc.contributor.authorStoddart, J. Fraser-
dc.date.accessioned2023-10-06T05:18:13Z-
dc.date.available2023-10-06T05:18:13Z-
dc.date.issued2017-
dc.identifier.citationJournal of the American Chemical Society, 2017, v. 139, n. 32, p. 11020-11023-
dc.identifier.issn0002-7863-
dc.identifier.urihttp://hdl.handle.net/10722/333288-
dc.description.abstractCo-crystallization of K+ and Li+ ions with γ-cyclodextrin (γ-CD) has been shown to substitute the K+ ion sites partially by Li+ ions, while retaining the structural integrity and accessible porosity of CD-MOF-1 (MOF, metal-organic framework). A series of experiments, in which the K+/Li+ ratio was varied with respect to that of γ-CD, have been conducted in order to achieve the highest possible proportion of Li+ ions in the framework. Attempts to obtain a CD-MOF containing only Li+ ions resulted in nonporous materials. The structural occupancy on the part of the Li+ ions in the new CD-MOF has been confirmed by single-crystal X-ray analysis by determining the vacancies of K+-ion sites and accounting for the cation/γ-CD ratio in CD-MOF-1. The proportion of Li+ ions has also been confirmed by elemental analysis, whereas powder X-ray diffraction has established the stability of the extended framework. This noninvasive synthetic approach to generating mixed-metal CD-MOFs is a promising method for obtaining porous framework unattainable de novo. Furthermore, the CO2 and H2 capture capacities of the Li+-ion-substituted CD-MOF have been shown to exceed the highest sorption capacities reported so far for CD-MOFs.-
dc.languageeng-
dc.relation.ispartofJournal of the American Chemical Society-
dc.titleNoninvasive Substitution of K<sup>+</sup> Sites in Cyclodextrin Metal-Organic Frameworks by Li<sup>+</sup> Ions-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1021/jacs.7b06287-
dc.identifier.pmid28772069-
dc.identifier.scopuseid_2-s2.0-85027414657-
dc.identifier.volume139-
dc.identifier.issue32-
dc.identifier.spage11020-
dc.identifier.epage11023-
dc.identifier.eissn1520-5126-
dc.identifier.isiWOS:000408074800021-

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