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dc.creatorBerdakin, Matias-
dc.creatorFéraud, Geraldine-
dc.creatorDedonder Lardeux, Claude-
dc.creatorJouvet, Christophe-
dc.creatorPino, Gustavo Ariel-
dc.date2017-12-22T15:04:47Z-
dc.date2017-12-22T15:04:47Z-
dc.date2014-06-
dc.date2017-12-21T16:26:45Z-
dc.date.accessioned2019-04-29T15:29:16Z-
dc.date.available2019-04-29T15:29:16Z-
dc.date.issued2017-12-22T15:04:47Z-
dc.date.issued2017-12-22T15:04:47Z-
dc.date.issued2014-06-
dc.date.issued2017-12-21T16:26:45Z-
dc.identifierPino, Gustavo Ariel; Jouvet, Christophe; Dedonder Lardeux, Claude; Féraud, Geraldine; Berdakin, Matias; Effect of Ag+ on the Excited-State Properties of a Gas-Phase (Cytosine)2Ag+ Complex: Electronic Transition and Estimated Lifetime; American Chemical Society; The Journal of Physical Chemistry Letters; 5; 13; 6-2014; 2295-2301-
dc.identifier1948-7185-
dc.identifierhttp://hdl.handle.net/11336/31368-
dc.identifierCONICET Digital-
dc.identifierCONICET-
dc.identifier.urihttp://rodna.bn.gov.ar:8080/jspui/handle/bnmm/295043-
dc.descriptionRecently, DNA molecules have received great attention because of their potential applications in material science. One interesting example is the production of highly fluorescent and tunable DNA–Agn clusters with cytosine (C)-rich DNA strands. Here, we report the UV photofragmentation spectra of gas-phase cytosine···Ag+···cytosine (C2Ag+) and cytosine···H+···cytosine (C2H+) complexes together with theoretical calculations. In both cases, the excitation energy does not differ significantly from that of isolated cytosine or protonated cytosine, indicating that the excitation takes place on the DNA base. However, the excited-state lifetime of the C2H+ (τ = 85 fs), estimated from the bandwidth of the spectrum, is at least 2 orders of magnitude shorter than that of the C2Ag+ (τ > 5000 fs). The increased excited-state lifetime upon silver complexation is quite unexpected, and it clearly opens the question about what factors are controlling the nonradiative decay in pyrimidine DNA bases. This is an important result for the expanding field of metal-mediated base pairing and may also be important to the photophysical properties of DNA-templated fluorescent silver clusters.-
dc.descriptionFil: Berdakin, Matias. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina-
dc.descriptionFil: Féraud, Geraldine. Aix Marseille Université. Marsella; Francia-
dc.descriptionFil: Dedonder Lardeux, Claude. Aix Marseille Université. Marsella; Francia-
dc.descriptionFil: Jouvet, Christophe. Aix Marseille Université. Marsella; Francia-
dc.descriptionFil: Pino, Gustavo Ariel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina-
dc.formatapplication/pdf-
dc.formatapplication/pdf-
dc.languageeng-
dc.publisherAmerican Chemical Society-
dc.relationinfo:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1021/jz5009455-
dc.relationinfo:eu-repo/semantics/altIdentifier/url/http://pubs.acs.org/doi/10.1021/jz5009455-
dc.rightsinfo:eu-repo/semantics/restrictedAccess-
dc.rightshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/-
dc.sourcereponame:CONICET Digital (CONICET)-
dc.sourceinstname:Consejo Nacional de Investigaciones Científicas y Técnicas-
dc.sourceinstacron:CONICET-
dc.subjectDNA bases-
dc.subjectDNA−Agn cluster-
dc.subjectexcited state-
dc.subjectmetal-mediated base pairs-
dc.subjectphotofragmentation spectroscopy-
dc.subjectOtras Ciencias Químicas-
dc.subjectCiencias Químicas-
dc.subjectCIENCIAS NATURALES Y EXACTAS-
dc.titleEffect of Ag+ on the Excited-State Properties of a Gas-Phase (Cytosine)2Ag+ Complex: Electronic Transition and Estimated Lifetime-
dc.typeinfo:eu-repo/semantics/article-
dc.typeinfo:eu-repo/semantics/publishedVersion-
dc.typeinfo:ar-repo/semantics/articulo-
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