Effect of Ag+ on the Excited-State Properties of a Gas-Phase (Cytosine)2Ag+ Complex: Electronic Transition and Estimated Lifetime
- Autores
- Berdakin, Matias; Féraud, Geraldine; Dedonder Lardeux, Claude; Jouvet, Christophe; Pino, Gustavo Ariel
- Año de publicación
- 2014
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Recently, 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.
Fil: 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
Fil: Féraud, Geraldine. Aix Marseille Université. Marsella; Francia
Fil: Dedonder Lardeux, Claude. Aix Marseille Université. Marsella; Francia
Fil: Jouvet, Christophe. Aix Marseille Université. Marsella; Francia
Fil: 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 - Materia
-
Dna Bases
Dna−Agn Cluster
Excited State
Metal-Mediated Base Pairs
Photofragmentation Spectroscopy - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/31368
Ver los metadatos del registro completo
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Effect of Ag+ on the Excited-State Properties of a Gas-Phase (Cytosine)2Ag+ Complex: Electronic Transition and Estimated LifetimeBerdakin, MatiasFéraud, GeraldineDedonder Lardeux, ClaudeJouvet, ChristophePino, Gustavo ArielDna BasesDna−Agn ClusterExcited StateMetal-Mediated Base PairsPhotofragmentation Spectroscopyhttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1Recently, 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.Fil: 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; ArgentinaFil: Féraud, Geraldine. Aix Marseille Université. Marsella; FranciaFil: Dedonder Lardeux, Claude. Aix Marseille Université. Marsella; FranciaFil: Jouvet, Christophe. Aix Marseille Université. Marsella; FranciaFil: 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; ArgentinaAmerican Chemical Society2014-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/31368Berdakin, Matias; Féraud, Geraldine; Dedonder Lardeux, Claude; Jouvet, Christophe; Pino, Gustavo Ariel; 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; 2295-23011948-7185CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1021/jz5009455info:eu-repo/semantics/altIdentifier/url/http://pubs.acs.org/doi/10.1021/jz5009455info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:32:59Zoai:ri.conicet.gov.ar:11336/31368instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:32:59.737CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Effect of Ag+ on the Excited-State Properties of a Gas-Phase (Cytosine)2Ag+ Complex: Electronic Transition and Estimated Lifetime |
title |
Effect of Ag+ on the Excited-State Properties of a Gas-Phase (Cytosine)2Ag+ Complex: Electronic Transition and Estimated Lifetime |
spellingShingle |
Effect of Ag+ on the Excited-State Properties of a Gas-Phase (Cytosine)2Ag+ Complex: Electronic Transition and Estimated Lifetime Berdakin, Matias Dna Bases Dna−Agn Cluster Excited State Metal-Mediated Base Pairs Photofragmentation Spectroscopy |
title_short |
Effect of Ag+ on the Excited-State Properties of a Gas-Phase (Cytosine)2Ag+ Complex: Electronic Transition and Estimated Lifetime |
title_full |
Effect of Ag+ on the Excited-State Properties of a Gas-Phase (Cytosine)2Ag+ Complex: Electronic Transition and Estimated Lifetime |
title_fullStr |
Effect of Ag+ on the Excited-State Properties of a Gas-Phase (Cytosine)2Ag+ Complex: Electronic Transition and Estimated Lifetime |
title_full_unstemmed |
Effect of Ag+ on the Excited-State Properties of a Gas-Phase (Cytosine)2Ag+ Complex: Electronic Transition and Estimated Lifetime |
title_sort |
Effect of Ag+ on the Excited-State Properties of a Gas-Phase (Cytosine)2Ag+ Complex: Electronic Transition and Estimated Lifetime |
dc.creator.none.fl_str_mv |
Berdakin, Matias Féraud, Geraldine Dedonder Lardeux, Claude Jouvet, Christophe Pino, Gustavo Ariel |
author |
Berdakin, Matias |
author_facet |
Berdakin, Matias Féraud, Geraldine Dedonder Lardeux, Claude Jouvet, Christophe Pino, Gustavo Ariel |
author_role |
author |
author2 |
Féraud, Geraldine Dedonder Lardeux, Claude Jouvet, Christophe Pino, Gustavo Ariel |
author2_role |
author author author author |
dc.subject.none.fl_str_mv |
Dna Bases Dna−Agn Cluster Excited State Metal-Mediated Base Pairs Photofragmentation Spectroscopy |
topic |
Dna Bases Dna−Agn Cluster Excited State Metal-Mediated Base Pairs Photofragmentation Spectroscopy |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.4 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
Recently, 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. Fil: 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 Fil: Féraud, Geraldine. Aix Marseille Université. Marsella; Francia Fil: Dedonder Lardeux, Claude. Aix Marseille Université. Marsella; Francia Fil: Jouvet, Christophe. Aix Marseille Université. Marsella; Francia Fil: 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 |
description |
Recently, 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. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-06 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/31368 Berdakin, Matias; Féraud, Geraldine; Dedonder Lardeux, Claude; Jouvet, Christophe; Pino, Gustavo Ariel; 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 1948-7185 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/31368 |
identifier_str_mv |
Berdakin, Matias; Féraud, Geraldine; Dedonder Lardeux, Claude; Jouvet, Christophe; Pino, Gustavo Ariel; 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 1948-7185 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/doi/10.1021/jz5009455 info:eu-repo/semantics/altIdentifier/url/http://pubs.acs.org/doi/10.1021/jz5009455 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
American Chemical Society |
publisher.none.fl_str_mv |
American Chemical Society |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
reponame_str |
CONICET Digital (CONICET) |
collection |
CONICET Digital (CONICET) |
instname_str |
Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.name.fl_str_mv |
CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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1844613009507352576 |
score |
13.070432 |