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dc.contributor.author
Kudisch, Bryan
dc.contributor.author
Maiuri, Margherita
dc.contributor.author
Moretti, Luca
dc.contributor.author
Oviedo, María Belén
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dc.contributor.author
Wang, Leon
dc.contributor.author
Oblinsky, Daniel G.
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Prud'homme, Robert K.
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Wong, Bryan M.
dc.contributor.author
McGill, Stephen A.
dc.contributor.author
Scholes, Gregory D.
dc.date.available
2021-09-29T20:13:58Z
dc.date.issued
2020-05
dc.identifier.citation
Kudisch, Bryan; Maiuri, Margherita; Moretti, Luca; Oviedo, María Belén; Wang, Leon; et al.; Ring currents modulate optoelectronic properties of aromatic chromophores at 25 T; National Academy of Sciences; Proceedings of the National Academy of Sciences of The United States of America; 117; 21; 5-2020; 11289-11298
dc.identifier.issn
0027-8424
dc.identifier.uri
http://hdl.handle.net/11336/141958
dc.description.abstract
The properties of organic molecules can be influenced by magnetic fields, and these magnetic field effects are diverse. They range from inducing nuclear Zeeman splitting for structural determination in NMR spectroscopy to polaron Zeeman splitting organic spintronics and organic magnetoresistance. A pervasive magnetic field effect on an aromatic molecule is the aromatic ring current, which can be thought of as an induction of a circular current of π-electrons upon the application of a magnetic field perpendicular to the π-system of the molecule. While in NMR spectroscopy the effects of ring currents on the chemical shifts of nearby protons are relatively well understood, and even predictable, the consequences of these modified electronic states on the spectroscopy of molecules has remained unknown. In this work, we find that photophysical properties of model phthalocyanine compounds and their aggregates display clear magnetic field dependences up to 25 T, with the aggregates showing more drastic magnetic field sensitivities depending on the intermolecular interactions with the amplification of ring currents in stacked aggregates. These observations are consistent with ring currents measured in NMR spectroscopy and simulated in time-dependent density functional theory calculations of magnetic field-dependent phthalocyanine monomer and dimer absorption spectra. We propose that ring currents in organic semiconductors, which commonly comprise aromatic moieties, may present new opportunities for the understanding and exploitation of combined optical, electronic, and magnetic properties.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
National Academy of Sciences
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
AROMATIC RING CURRENTS
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MAGNETIC FIELDS
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ULTRAFAST SPECTROSCOPY
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Otras Ciencias Químicas
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dc.subject.classification
Ciencias Químicas
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CIENCIAS NATURALES Y EXACTAS
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dc.title
Ring currents modulate optoelectronic properties of aromatic chromophores at 25 T
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2021-09-06T16:43:44Z
dc.identifier.eissn
1091-6490
dc.journal.volume
117
dc.journal.number
21
dc.journal.pagination
11289-11298
dc.journal.pais
Estados Unidos
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dc.journal.ciudad
Washington DC
dc.description.fil
Fil: Kudisch, Bryan. University of Princeton; Estados Unidos
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Fil: Maiuri, Margherita. University of Princeton; Estados Unidos. Politecnico di Milano; Italia
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Fil: Moretti, Luca. University of Princeton; Estados Unidos. Politecnico di Milano; Italia
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Fil: Oviedo, María Belén. University of Princeton; Estados Unidos. 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. Universidad Nacional de Córdoba. Facultad de Cs.químicas. Departamento de Química Teórica y Computacional; Argentina
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Fil: Wang, Leon. University of Princeton; Estados Unidos
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Fil: Oblinsky, Daniel G.. University of Princeton; Estados Unidos
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Fil: Prud'homme, Robert K.. University of Princeton; Estados Unidos
dc.description.fil
Fil: Wong, Bryan M.. University Of California Riverside; Estados Unidos
dc.description.fil
Fil: McGill, Stephen A.. National High Magnetic Field Laboratory; Estados Unidos
dc.description.fil
Fil: Scholes, Gregory D.. University of Princeton; Estados Unidos
dc.journal.title
Proceedings of the National Academy of Sciences of The United States of America
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.pnas.org/lookup/doi/10.1073/pnas.1918148117
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1073/pnas.1918148117
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