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dc.contributor.author | Montes Navajas, Pedro Manuel | es_ES |
dc.contributor.author | García Gómez, Hermenegildo | es_ES |
dc.date.accessioned | 2020-04-17T12:50:56Z | |
dc.date.available | 2020-04-17T12:50:56Z | |
dc.date.issued | 2013 | es_ES |
dc.identifier.issn | 0021-9797 | es_ES |
dc.identifier.uri | http://hdl.handle.net/10251/140935 | |
dc.description.abstract | [EN] This manuscript focuses on the influence that the addition of Fe2+ as electron donor quencher exerts on the photophysics of 2,4,6-triphenylpyrylium (TP+) depending on the formation or not of supramolecular inclusion complexes with cucurbit[n]uril (n: 7 or 8). 1H-NMR spectroscopy does not provide evidence supporting the formation of a ternary TP+@CB[n] Fe2+ complex. Emission quenching studies indicate that the prevalent deactivation mechanism for the quenching of TP+ emission by Fe2+ is by increasing the ionic strength of the solution, with no evidence for the occurrence of dynamic quenching. Laser flash photolysis indicates that while the triplet excited state of TP+ is instantaneously quenched by Fe2+ in the absence of CB[n], formation of the TP+@CB[n] inclusion complex protects TP+ triplet excited state from quenching, an effect that is more pronounced in the case of CB[8] due to the deeper penetration and more complete encapsulation of the heterocyclic pyrylium core inside the larger CB[8] capsule. | es_ES |
dc.description.sponsorship | Financial support by the Spanish Ministry of Economy and Competitiviness (CTQ2012-31325) and Generalidad Valenciana (Prometeo 20127014) is gratefully acknowledged. P. Montes-Navajas also thanks the Universidad Politecnica de Valencia for a post-doctoral contract for excellence (CEI-01-11, 20090796). | es_ES |
dc.language | Inglés | es_ES |
dc.publisher | Elsevier | es_ES |
dc.relation.ispartof | Journal of Colloid and Interface Science | es_ES |
dc.rights | Reserva de todos los derechos | es_ES |
dc.subject | Supramolecular chemistry | es_ES |
dc.subject | Cucurbiturils | es_ES |
dc.subject | Photoinduced electron transfer | es_ES |
dc.subject | Quenching | es_ES |
dc.subject | Triphenylpyrylium | es_ES |
dc.subject.classification | QUIMICA ORGANICA | es_ES |
dc.subject.classification | QUIMICA ANALITICA | es_ES |
dc.title | Influence of CB[n] complexation on the quenching of 2,4,6-triphenylpyrylium excited states by Fe2+ ions | es_ES |
dc.type | Artículo | es_ES |
dc.identifier.doi | 10.1016/j.jcis.2013.08.016 | es_ES |
dc.relation.projectID | info:eu-repo/grantAgreement/GVA//PROMETEO%2F2012%2F014/ | es_ES |
dc.relation.projectID | info:eu-repo/grantAgreement/UPV//CE-01-11/ | es_ES |
dc.relation.projectID | info:eu-repo/grantAgreement/UPV//20090796/ | es_ES |
dc.relation.projectID | info:eu-repo/grantAgreement/MINECO//CTQ2012-32315/ES/REDUCCION FOTOCATALITICA DEL DIOXIDO DE CARBONO/ | es_ES |
dc.rights.accessRights | Cerrado | es_ES |
dc.contributor.affiliation | Universitat Politècnica de València. Departamento de Química - Departament de Química | es_ES |
dc.description.bibliographicCitation | Montes Navajas, PM.; García Gómez, H. (2013). Influence of CB[n] complexation on the quenching of 2,4,6-triphenylpyrylium excited states by Fe2+ ions. Journal of Colloid and Interface Science. 410:111-115. https://doi.org/10.1016/j.jcis.2013.08.016 | es_ES |
dc.description.accrualMethod | S | es_ES |
dc.relation.publisherversion | https://doi.org/10.1016/j.jcis.2013.08.016 | es_ES |
dc.description.upvformatpinicio | 111 | es_ES |
dc.description.upvformatpfin | 115 | es_ES |
dc.type.version | info:eu-repo/semantics/publishedVersion | es_ES |
dc.description.volume | 410 | es_ES |
dc.relation.pasarela | S\262431 | es_ES |
dc.contributor.funder | Generalitat Valenciana | es_ES |
dc.contributor.funder | Universitat Politècnica de València | es_ES |
dc.contributor.funder | Ministerio de Economía y Competitividad | es_ES |