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dc.contributor.authorMallick, Arijit
dc.contributor.authorEl-Zohry, Ahmed
dc.contributor.authorShekhah, Osama
dc.contributor.authorYin, Jun
dc.contributor.authorJia, Jiangtao
dc.contributor.authorAggarwal, Himanshu
dc.contributor.authorEmwas, Abdul-Hamid M.
dc.contributor.authorMohammed, Omar F.
dc.contributor.authorEddaoudi, Mohamed
dc.date.accessioned2019-04-22T12:53:34Z
dc.date.available2019-04-22T12:53:34Z
dc.date.issued2019-04-15
dc.identifier.citationMallick A, El-Zohry AM, Shekhah O, Yin J, jia jiangtao, et al. (2019) Unprecedented ultralow detection limit of amines using a thiadiazole-functionalized Zr(IV)-based metal-organic framework. Journal of the American Chemical Society. Available: http://dx.doi.org/10.1021/jacs.9b01839.
dc.identifier.issn0002-7863
dc.identifier.issn1520-5126
dc.identifier.doi10.1021/jacs.9b01839
dc.identifier.urihttp://hdl.handle.net/10754/631977
dc.description.abstractA luminescent Zr(IV)-based MOF, with the underlying fcu topology, encompassing a π-conjugated organic ligand with a thiadiazole functionality, exhibits an unprecedented low detection limit of 66 nanomolar (nM) for amines in aqueous solution. Markedly, this ultra-low detection is driven by the hydro-gen bonding interactions between the linker and amines. This observation is fully supported by Density Functional Theory (DFT) calculations which clearly corroborate the suppression of the twisting motion of the thiadiazole core in the presence of amine, reducing significantly the non-radiative recombination pathways and subsequently enhancing the emission intensity. Credibly, nicotine regarded as a harmful chemical and bearing an amine pending group is also detected with high sensitivity, positioning this MOF as a potential sensor for practical environmental applications. This finding not only provides an unprecedented low detection limit, but also serves as a benchmark to understand the sensing mechanism in MOFs.
dc.description.sponsorshipThe authors gratefully acknowledge financial support from King Abdullah University of Science and Technology (KAUST). In the memory of Abdallah Eddaoudi.
dc.publisherAmerican Chemical Society (ACS)
dc.relation.urlhttps://pubs.acs.org/doi/10.1021/jacs.9b01839
dc.rightsThis document is the Accepted Manuscript version of a Published Work that appeared in final form in Journal of the American Chemical Society, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://pubs.acs.org/doi/10.1021/jacs.9b01839.
dc.titleUnprecedented ultralow detection limit of amines using a thiadiazole-functionalized Zr(IV)-based metal-organic framework
dc.typeArticle
dc.contributor.departmentAdvanced Membranes and Porous Materials Research Center
dc.contributor.departmentChemical Science Program
dc.contributor.departmentFunctional Materials Design, Discovery and Development (FMD3)
dc.contributor.departmentKAUST Solar Center (KSC)
dc.contributor.departmentNMR
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.contributor.departmentUltrafast Laser Spectroscopy and Four-dimensional Electron Imaging Research Group
dc.identifier.journalJournal of the American Chemical Society
dc.eprint.versionPost-print
kaust.personMallick, Arijit
kaust.personEl-Zohry, Ahmed
kaust.personShekhah, Osama
kaust.personYin, Jun
kaust.personJia, Jiangtao
kaust.personAggarwal, Himanshu
kaust.personEmwas, Abdul-Hamid M.
kaust.personMohammed, Omar F.
kaust.personEddaoudi, Mohamed
refterms.dateFOA2020-04-15T00:00:00Z
dc.date.published-online2019-04-15
dc.date.published-print2019-05-08


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