Communication: UV photoionization of cytosine catalyzed by Ag+

Autores
Taccone, Martín Ignacio; Féraud, Geraldine; Berdakin, Matias; Dedonder Lardeux, Claude; Jouvet, Christophe; Pino, Gustavo Ariel
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The photo-induced damages of DNA in interaction with metal cations, which are found in various environments, still remain to be characterized. In this paper, we show how the complexation of a DNA base (cytosine (Cyt)) with a metal cation (Ag+) changes its electronic properties. By means of UV photofragment spectroscopy of cold ions, it was found that the photoexcitation of the CytAg+ complex at low energy (315-282) nm efficiently leads to ionized cytosine (Cyt+) as the single product. This occurs through a charge transfer state in which an electron from the p orbital of Cyt is promoted to Ag+, as confirmed by ab initio calculations at the TD-DFT/B3LYP and RI-ADC(2) theory level using the SV(P) basis set. The low ionization energy of Cyt in the presence of Ag+ could have important implications as point mutation of DNA upon sunlight exposition.
Fil: Taccone, Martín Ignacio. 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. Physique des Interactions Ioniques et Moléculaires; Francia
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: Dedonder Lardeux, Claude. Aix Marseille Université. Physique des Interactions Ioniques et Moléculaires; Francia
Fil: Jouvet, Christophe. Physique des Interactions Ioniques et Moléculaires; 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
PHOTOIONIZATION
DNA
CYTOSINE
LASER
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/47173
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/47173
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Communication: UV photoionization of cytosine catalyzed by Ag+Taccone, Martín IgnacioFéraud, GeraldineBerdakin, MatiasDedonder Lardeux, ClaudeJouvet, ChristophePino, Gustavo ArielPHOTOIONIZATIONDNACYTOSINELASERhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1The photo-induced damages of DNA in interaction with metal cations, which are found in various environments, still remain to be characterized. In this paper, we show how the complexation of a DNA base (cytosine (Cyt)) with a metal cation (Ag+) changes its electronic properties. By means of UV photofragment spectroscopy of cold ions, it was found that the photoexcitation of the CytAg+ complex at low energy (315-282) nm efficiently leads to ionized cytosine (Cyt+) as the single product. This occurs through a charge transfer state in which an electron from the p orbital of Cyt is promoted to Ag+, as confirmed by ab initio calculations at the TD-DFT/B3LYP and RI-ADC(2) theory level using the SV(P) basis set. The low ionization energy of Cyt in the presence of Ag+ could have important implications as point mutation of DNA upon sunlight exposition.Fil: Taccone, Martín Ignacio. 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. Physique des Interactions Ioniques et Moléculaires; FranciaFil: 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: Dedonder Lardeux, Claude. Aix Marseille Université. Physique des Interactions Ioniques et Moléculaires; FranciaFil: Jouvet, Christophe. Physique des Interactions Ioniques et Moléculaires; 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 Institute of Physics2015-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/47173Taccone, Martín Ignacio; Féraud, Geraldine; Berdakin, Matias; Dedonder Lardeux, Claude; Jouvet, Christophe; et al.; Communication: UV photoionization of cytosine catalyzed by Ag+; American Institute of Physics; Journal of Chemical Physics; 143; 4; 7-20150021-96061089-7690CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://aip.scitation.org/doi/10.1063/1.4927469info:eu-repo/semantics/altIdentifier/doi/10.1063/1.4927469info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:17:34Zoai:ri.conicet.gov.ar:11336/47173instacron: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 10:17:34.835CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Communication: UV photoionization of cytosine catalyzed by Ag+
title Communication: UV photoionization of cytosine catalyzed by Ag+
spellingShingle Communication: UV photoionization of cytosine catalyzed by Ag+
Taccone, Martín Ignacio
PHOTOIONIZATION
DNA
CYTOSINE
LASER
title_short Communication: UV photoionization of cytosine catalyzed by Ag+
title_full Communication: UV photoionization of cytosine catalyzed by Ag+
title_fullStr Communication: UV photoionization of cytosine catalyzed by Ag+
title_full_unstemmed Communication: UV photoionization of cytosine catalyzed by Ag+
title_sort Communication: UV photoionization of cytosine catalyzed by Ag+
dc.creator.none.fl_str_mv Taccone, Martín Ignacio
Féraud, Geraldine
Berdakin, Matias
Dedonder Lardeux, Claude
Jouvet, Christophe
Pino, Gustavo Ariel
author Taccone, Martín Ignacio
author_facet Taccone, Martín Ignacio
Féraud, Geraldine
Berdakin, Matias
Dedonder Lardeux, Claude
Jouvet, Christophe
Pino, Gustavo Ariel
author_role author
author2 Féraud, Geraldine
Berdakin, Matias
Dedonder Lardeux, Claude
Jouvet, Christophe
Pino, Gustavo Ariel
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv PHOTOIONIZATION
DNA
CYTOSINE
LASER
topic PHOTOIONIZATION
DNA
CYTOSINE
LASER
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The photo-induced damages of DNA in interaction with metal cations, which are found in various environments, still remain to be characterized. In this paper, we show how the complexation of a DNA base (cytosine (Cyt)) with a metal cation (Ag+) changes its electronic properties. By means of UV photofragment spectroscopy of cold ions, it was found that the photoexcitation of the CytAg+ complex at low energy (315-282) nm efficiently leads to ionized cytosine (Cyt+) as the single product. This occurs through a charge transfer state in which an electron from the p orbital of Cyt is promoted to Ag+, as confirmed by ab initio calculations at the TD-DFT/B3LYP and RI-ADC(2) theory level using the SV(P) basis set. The low ionization energy of Cyt in the presence of Ag+ could have important implications as point mutation of DNA upon sunlight exposition.
Fil: Taccone, Martín Ignacio. 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. Physique des Interactions Ioniques et Moléculaires; Francia
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: Dedonder Lardeux, Claude. Aix Marseille Université. Physique des Interactions Ioniques et Moléculaires; Francia
Fil: Jouvet, Christophe. Physique des Interactions Ioniques et Moléculaires; 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 The photo-induced damages of DNA in interaction with metal cations, which are found in various environments, still remain to be characterized. In this paper, we show how the complexation of a DNA base (cytosine (Cyt)) with a metal cation (Ag+) changes its electronic properties. By means of UV photofragment spectroscopy of cold ions, it was found that the photoexcitation of the CytAg+ complex at low energy (315-282) nm efficiently leads to ionized cytosine (Cyt+) as the single product. This occurs through a charge transfer state in which an electron from the p orbital of Cyt is promoted to Ag+, as confirmed by ab initio calculations at the TD-DFT/B3LYP and RI-ADC(2) theory level using the SV(P) basis set. The low ionization energy of Cyt in the presence of Ag+ could have important implications as point mutation of DNA upon sunlight exposition.
publishDate 2015
dc.date.none.fl_str_mv 2015-07
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/11336/47173
Taccone, Martín Ignacio; Féraud, Geraldine; Berdakin, Matias; Dedonder Lardeux, Claude; Jouvet, Christophe; et al.; Communication: UV photoionization of cytosine catalyzed by Ag+; American Institute of Physics; Journal of Chemical Physics; 143; 4; 7-2015
0021-9606
1089-7690
CONICET Digital
CONICET
url http://hdl.handle.net/11336/47173
identifier_str_mv Taccone, Martín Ignacio; Féraud, Geraldine; Berdakin, Matias; Dedonder Lardeux, Claude; Jouvet, Christophe; et al.; Communication: UV photoionization of cytosine catalyzed by Ag+; American Institute of Physics; Journal of Chemical Physics; 143; 4; 7-2015
0021-9606
1089-7690
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://aip.scitation.org/doi/10.1063/1.4927469
info:eu-repo/semantics/altIdentifier/doi/10.1063/1.4927469
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 Institute of Physics
publisher.none.fl_str_mv American Institute of Physics
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
_version_ 1844614129898225664
score 13.070432

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