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dc.contributor.authorAliaga, Margarita E.
dc.contributor.authorPávez, Paulina
dc.contributor.authorQuintero, Guillermo
dc.contributor.authorDroguett, Kevin
dc.contributor.authorCañete M., Alvaro
dc.contributor.authorSantos, José
dc.date.accessioned2020-12-22T22:09:53Z
dc.date.available2020-12-22T22:09:53Z
dc.date.issued2020-12-15
dc.identifier10.1080/10610278.2020.1856845
dc.identifier.issn10610278
dc.identifier.urihttps://hdl.handle.net/20.500.12728/7904
dc.description.abstractThe inclusion of 7-diethylamino-coumarin derivatives, bearing an ethyl acetoacetate (CAM1) and a methyl β-ketodithioester moiety (CAM2) in the cavity of cucurbit[7]uril (CB7), leads to different interaction forms with mercuric ions (Hg2+). The interaction between these ions and CAM1, in the presence of CB7, occurs through the lateral ethyl acetoacetate moiety of the keto form of CAM1, leading to the formation of binary assemblies such as Hg2+@CAM1 and Hg2+@CB7. As a consequence, the metal restricts the insertion of the dye into the CB7 cavity, decreasing the apparent binding constant between them. Interestingly, for the other derivative CAM2, a mercury-induced desulfurisation reaction of its β-ketodithioester moiety is kinetically accelerated by CB7 (by a factor ≈25), which subsequently leads to the generation of binary and ternary complexes among the analogue oxygenised from CAM2, metal and CB7. The later effect is a promising strategy that could be considered for the mercury sensing methodology.es_ES
dc.language.isoenes_ES
dc.publisherTaylor and Francis Ltd.es_ES
dc.subjectCB7-promoted desulfurisationes_ES
dc.subjectcompetitive/cooperative approaches_ES
dc.subjectcoumarin derivativeses_ES
dc.subjectmethyl β-ketodithioester frameworkes_ES
dc.subjectStabilisation keto formes_ES
dc.titleCucurbit[7]uril limits the binding of coumarin bearing alkyl-acetoacetate with mercury and stimulates the desulphurisation reaction of its sulphur analoges_ES
dc.typeArticlees_ES


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