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Low field photo-CIDNP in the intramolecular electron transfer in naproxen-pyrrolidine dyads

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Low field photo-CIDNP in the intramolecular electron transfer in naproxen-pyrrolidine dyads

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dc.contributor.author Magin, I.M. es_ES
dc.contributor.author Polyakov, N.E. es_ES
dc.contributor.author Kruppa, A. I. es_ES
dc.contributor.author Purtov, P.A. es_ES
dc.contributor.author Leshina, T. V. es_ES
dc.contributor.author Kiryutin, A. S. es_ES
dc.contributor.author Miranda Alonso, Miguel Ángel es_ES
dc.contributor.author Nuin Plá, Neus Edurne es_ES
dc.contributor.author Marín García, Mª Luisa es_ES
dc.date.accessioned 2017-05-29T09:44:36Z
dc.date.available 2017-05-29T09:44:36Z
dc.date.issued 2016-01-14
dc.identifier.issn 1463-9076
dc.identifier.uri http://hdl.handle.net/10251/81901
dc.description.abstract [EN] Photoinduced processes with partial (exciplex) and full charge transfer in donor-acceptor systems are of interest because they are frequently used for modeling drug-protein binding. Low field photo-CIDNP (chemically induced dynamic nuclear polarization) for these processes in dyads, including the drug, (S)-and (R)-naproxen and (S)-N-methyl pyrrolidine in solutions with strong and weak permittivity have been measured. The dramatic influence of solvent permittivity on the field dependence of the N-methyl pyrrolidine H-1 CIDNP effects has been found. The field dependences of both (R, S)-and (S, S)-dyads in a polar medium are the curves with a single extremum in the area of the S-T+ terms intersection. Moreover, the CIDNP field dependences of the same protons measured in a low polar medium present curves with several extrema. The shapes of the experimental CIDNP field dependence with two extrema have been described using the Green function approach for the calculation of the CIDNP effects in the system without electron exchange interactions. The article discusses the possible causes of the differences between the CIDNP field dependence detected in a low-permittivity solvent with the strong Coulomb interactions and in a polar solvent. es_ES
dc.description.sponsorship This study was supported by the grant 14-03-00-192 of the Russian Foundation of Basic Research. The authors are also deeply grateful to Professor Hans-Martin Vieth for the given opportunity to conduct experiments on his unique equipment.
dc.language Inglés es_ES
dc.publisher Royal Society of Chemistry es_ES
dc.relation.ispartof Physical Chemistry Chemical Physics es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Radical-ion pairs es_ES
dc.subject Green-function method es_ES
dc.subject Magnetic-field es_ES
dc.subject Semiclassical description es_ES
dc.subject Geminate recombination es_ES
dc.subject Spin polarization es_ES
dc.subject Fluorescence es_ES
dc.subject Exciplex es_ES
dc.subject Solvent es_ES
dc.subject Nuclear es_ES
dc.subject.classification QUIMICA ORGANICA es_ES
dc.subject.classification QUIMICA ANALITICA es_ES
dc.title Low field photo-CIDNP in the intramolecular electron transfer in naproxen-pyrrolidine dyads es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1039/C5CP04233J
dc.relation.projectID info:eu-repo/grantAgreement/RFBR//14-03-00-192/ es_ES
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Escuela Técnica Superior de Ingenieros Industriales - Escola Tècnica Superior d'Enginyers Industrials es_ES
dc.contributor.affiliation Universitat Politècnica de València. Instituto Universitario Mixto de Tecnología Química - Institut Universitari Mixt de Tecnologia Química es_ES
dc.description.bibliographicCitation Magin, I.; Polyakov, N.; Kruppa, AI.; Purtov, P.; Leshina, TV.; Kiryutin, AS.; Miranda Alonso, MÁ.... (2016). Low field photo-CIDNP in the intramolecular electron transfer in naproxen-pyrrolidine dyads. Physical Chemistry Chemical Physics. 18(2):901-907. https://doi.org/10.1039/C5CP04233J es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion http://doi.org/10.1039/c5cp04233j es_ES
dc.description.upvformatpinicio 901 es_ES
dc.description.upvformatpfin 907 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 18 es_ES
dc.description.issue 2 es_ES
dc.relation.senia 298370 es_ES
dc.identifier.eissn 1463-9084
dc.identifier.pmid 26648262
dc.contributor.funder Russian Foundation for Basic Research
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