Do Carbon Nano‐onions Behave as Nanoscopic Faraday Cages? A Comparison of the Reactivity of C60, C240, C60@C240, Li+@C60, Li+@C240, and Li+@C60@C240
dc.contributor.author
dc.date.accessioned
2020-01-27T11:23:44Z
dc.date.available
2020-01-27T11:23:44Z
dc.date.issued
2020-01-16
dc.identifier.issn
0947-6539
dc.identifier.uri
dc.description.abstract
From the analysis of the polarizability of carbon nano-onions (CNOs), it was concluded that CNOs behave as near perfect nanoscopic Faraday cages. If CNOs behave as ideal Faraday cages, the reactivity of the C240 cage should be the same in Li+@C240 and Li+@C60@C240. In this work, the Diels–Alder reaction of cyclopentadiene to the free C240 cage and the C60@C240 CNO together with their Li+-doped counterparts were analyzed using DFT. It was found that in all cases the preferred cycloaddition is on bond [6,6] of type B of C240. Encapsulation of Li+ results in lower enthalpy barriers due to the decrease of the energy of the LUMO orbital of the C240 cage. When the Li+ is placed inside the CNO C60@C240, the decrease in enthalpy barrier is similar to that of Li+@C240. However, the location of Li+ in Li+@C240 (off-centered) and Li+@C60@C240 (centered) is quite different. When Li+ was placed in the center of the C240 cage in Li+@C240, the barriers increased significantly. Taking into account this effect, the barriers in Li+@C240 and Li+@C60@C240 differ by about 4 kcal mol−1. This result can be attributed to the shielding effect of C60 in Li+@C60@C240. As a result, we conclude that this CNO does not act as a perfect Faraday cage
dc.description.sponsorship
J.A.L.U. thanks Universitat de Girona for an IFUdG2017 PhD
fellowship. A.P. is a Serra Húnter fellow. A.P. and M.S. thank the
Spanish MINECO for projects PGC2018-097722-B-I00 and
CTQ2017-85341-P, respectively. M.S. thanks the Generalitat de
Catalunya for project 2017SGR39, the Xarxa de Referència en
Química Teòrica i Computacional, and ICREA Academia 2014
prize
dc.format.mimetype
application/pdf
dc.language.iso
eng
dc.publisher
Wiley-VCH Verlag
dc.relation
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PGC2018-097722-B-I00/ES/REDESCUBRIMIENTO IN SILICO DE MECANISMOS ASISTIDOS DUALES DE LA CATALISIS MONOMETALICA: HACIA EL TRABAJO EN CONDICIONES SUAVES/
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CTQ2017-85341-P/ES/AVANCES EN LA REACTIVIDAD DE FULLERENOS Y NANOTUBOS: ESTUDIOS TEORICO-EXPERIMENTALES DE CICLACIONES CATALIZADAS POR METALES DE TRANSICION/
dc.relation.isformatof
Versió postprint del document publicat a: https://doi.org/10.1002/chem.201904650
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© Chemistry - A European Journal, 2019, vol. 26, núm. 4, p. 804-808
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Articles publicats (D-Q)
dc.rights
Tots els drets reservats
dc.subject
dc.title
Do Carbon Nano‐onions Behave as Nanoscopic Faraday Cages? A Comparison of the Reactivity of C60, C240, C60@C240, Li+@C60, Li+@C240, and Li+@C60@C240
dc.type
info:eu-repo/semantics/article
dc.rights.accessRights
info:eu-repo/semantics/openAccess
dc.date.embargoEndDate
info:eu-repo/date/embargoEnd/2021-01-16
dc.type.version
info:eu-repo/semantics/acceptedVersion
dc.identifier.doi
dc.identifier.idgrec
030599
dc.contributor.funder
dc.type.peerreviewed
peer-reviewed
dc.relation.FundingProgramme
dc.relation.ProjectAcronym
dc.identifier.eissn
1521-3765