A high saturation factor in Overhauser DNP with nitroxide derivatives: the role of 14N nuclear spin relaxation

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dc.contributor.affiliationUniversidade de Santiago de Compostela. Departamento de Química Inorgánicaes_ES
dc.contributor.authorEnkin, Nikolay
dc.contributor.authorGiménez López, María del Carmen
dc.contributor.authorPorfyrakis, Kyriakos
dc.contributor.authorTkach, Igor
dc.contributor.authorBennati, Marina
dc.contributor.authorEnkin, Nikolay
dc.date.accessioned2024-02-05T12:22:18Z
dc.date.available2024-02-05T12:22:18Z
dc.date.issued2015-03-30
dc.description.abstractOverhauser DNP enhancements of toluene were measured at a magnetic field of 0.35 Tesla in a series of chemically functionalized nitroxide radicals. We observe that the enhancements increase systematically with polarizer size and rotational correlation time. Examination of the saturation factor of 14N nitroxides by pulsed ELDOR spectroscopy led to a quantitative interpretation of the enhancements, for which the saturation factor increases up to almost unity due to enhanced nuclear (14N) relaxation in the nitroxide radical. The observation has a direct impact on the choice of optimum DNP polarizers in liquids.es_ES
dc.description.peerreviewedSIes_ES
dc.description.sponsorshipFinancial support from: the Max Planck Society and the COST Action TD1103 (European Network on Hyperpolarization), NE acknowledges the Graduate School for Neurosciences, Biophysics and Molecular Biosciences in Göttingen.es_ES
dc.identifier.citationEnkin, N., Liu, G., Gimenez-Lopez, M.C., Porfyrakis, K., Tkach, I., and Bennati, M. (2015). A high saturation factor in Overhauser DNP with nitroxide derivatives: the role of 14N nuclear spin relaxation. Physical Chemistry Chemical Physics, 17, 11144-11149es_ES
dc.identifier.doi10.1039/C5CP00935A
dc.identifier.essn1463-9084
dc.identifier.issn1463-9076
dc.identifier.urihttp://hdl.handle.net/10347/32342
dc.language.isoenges_ES
dc.publisherRoyal Society of Chemistryes_ES
dc.relation.publisherversionhttps://doi.org/10.1039/C5CP00935Aes_ES
dc.rightsCC BY-NC-ND 4.0es_ES
dc.rights.accessRightsopen accesses_ES
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectNitroxide derivativeses_ES
dc.subjectOverhauseres_ES
dc.subjectDynamic nuclear polarizationes_ES
dc.subject.classification2303 Química inorgánicaes_ES
dc.titleA high saturation factor in Overhauser DNP with nitroxide derivatives: the role of 14N nuclear spin relaxationes_ES
dc.typejournal articlees_ES
dc.type.hasVersionAMes_ES
dspace.entity.typePublication
relation.isAuthorOfPublication856421d6-de20-49ea-b0b9-e2b6b43d06ca
relation.isAuthorOfPublication.latestForDiscovery856421d6-de20-49ea-b0b9-e2b6b43d06ca

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