Please use this identifier to cite or link to this item:
https://hdl.handle.net/10316/101243
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Viegas, Luís P | - |
dc.contributor.author | Nunes, Cláudio M | - |
dc.contributor.author | Fausto, Rui | - |
dc.date.accessioned | 2022-08-17T16:50:21Z | - |
dc.date.available | 2022-08-17T16:50:21Z | - |
dc.date.issued | 2021-03-18 | - |
dc.identifier.uri | https://hdl.handle.net/10316/101243 | - |
dc.description.abstract | In 1975, Buchwalter and Closs reported one of the first examples of heavy-atom quantum mechanical tunneling (QMT) by studying the ring closure of triplet cyclopentane-1,3-diyl to singlet bicyclo[2.1.0]pentane in cryogenic glasses. Since then, no clear theoretical evidence has been provided to elucidate how the intersystem crossing (ISC) and QMT are related in the reaction mechanism. In this work, we unequivocally show that at cryogenic temperatures, the ISC occurs solely in the quantum tunneling regime, with weak coupling non-adiabatic transition state theory rate constants predicting a spontaneous reaction in fair agreement with experimental observations. Despite its limitations, such an approach can be used to help unlock a comprehensive understanding of a variety of spin-forbidden chemical reactions in the low temperature regime. | pt |
dc.language.iso | eng | pt |
dc.publisher | Royal Society of Chemistry | pt |
dc.relation | info:eu-repo/grantAgreement/POCI-01-0145-FEDER-028973/PT | pt |
dc.relation | UIDB/00313/2020 | pt |
dc.relation | UIDP/00313/2020 | pt |
dc.rights | embargoedAccess | pt |
dc.title | Spin-forbidden heavy-atom tunneling in the ring-closure of triplet cyclopentane-1,3-diyl | pt |
dc.type | article | - |
degois.publication.firstPage | 5797 | pt |
degois.publication.lastPage | 5803 | pt |
degois.publication.issue | 10 | pt |
degois.publication.title | Physical Chemistry Chemical Physics | pt |
dc.relation.publisherversion | https://doi.org/10.1039/D1CP00076D | pt |
dc.peerreviewed | yes | pt |
dc.identifier.doi | 10.1039/d1cp00076d | pt |
degois.publication.volume | 23 | pt |
dc.date.embargo | 2022-03-18 | * |
uc.date.periodoEmbargo | 365 | pt |
item.languageiso639-1 | en | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.grantfulltext | open | - |
item.fulltext | Com Texto completo | - |
item.cerifentitytype | Publications | - |
item.openairetype | article | - |
crisitem.project.grantno | Coimbra Chemistry Center | - |
crisitem.project.grantno | Coimbra Chemistry Center | - |
crisitem.author.researchunit | CQC - Coimbra Chemistry Centre | - |
crisitem.author.researchunit | CQC - Coimbra Chemistry Centre | - |
crisitem.author.parentresearchunit | Faculty of Sciences and Technology | - |
crisitem.author.parentresearchunit | Faculty of Sciences and Technology | - |
crisitem.author.orcid | 0000-0002-8511-1230 | - |
crisitem.author.orcid | 0000-0002-8264-6854 | - |
Appears in Collections: | I&D CQC - Artigos em Revistas Internacionais |
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File | Description | Size | Format | |
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PCCP-2021-23-5797.pdf | 1.79 MB | Adobe PDF | View/Open |
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