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Sulfur and phosphorus oxyacid radicals
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dc.contributor.author | Buehl, Michael | |
dc.contributor.author | Hutson, Tallulah | |
dc.contributor.author | Missio, Alice | |
dc.contributor.author | Walton, John C. | |
dc.date.accessioned | 2022-05-04T10:30:10Z | |
dc.date.available | 2022-05-04T10:30:10Z | |
dc.date.issued | 2022-02-10 | |
dc.identifier.citation | Buehl , M , Hutson , T , Missio , A & Walton , J C 2022 , ' Sulfur and phosphorus oxyacid radicals ' , Journal of Physical Chemistry A , vol. 126 , no. 5 , pp. 760-771 . https://doi.org/10.1021/acs.jpca.1c10455 | en |
dc.identifier.issn | 1089-5639 | |
dc.identifier.other | PURE: 277525555 | |
dc.identifier.other | PURE UUID: 5bc9892c-ae8c-4d4b-9408-97a21ae2e61c | |
dc.identifier.other | ORCID: /0000-0003-2746-6276/work/106837802 | |
dc.identifier.other | ORCID: /0000-0002-1095-7143/work/106837911 | |
dc.identifier.other | Scopus: 85124126936 | |
dc.identifier.other | WOS: 000754454100011 | |
dc.identifier.uri | https://hdl.handle.net/10023/25275 | |
dc.description | Authors thank the University of St. Andrews and the EaStCHEM Research Computing Facility for financial and computational support. | en |
dc.description.abstract | We report a computational study of the little-studied neutral bisulfite, bisulfate, dihydro-phosphite and dihydro–phosphate radicals (HSOx•, H2POx•, x = 3,4), calling special attention to their various tautomeric structures together with pKa values estimated from the Gibbs free energies of their dissociations (at the G4 and CAM-B3LYP levels of density functional theory). The energetics of microhydration clusters with up to 4 water molecules for the S-based species and up to 8 waters for the P-based species were investigated. The number of microhydrating water molecules needed to induce spontaneous de-protonation is found to correlate the acid strength of each radical. According to computed Gibbs free reaction and activation energies, S- and P-centered radicals preferentially add to the double bond of propene (a lipid model), whereas the O-centered radical tautomers prefer H-abstraction. The likely downstream reactions of these radicals in biological media are discussed. | |
dc.language.iso | eng | |
dc.relation.ispartof | Journal of Physical Chemistry A | en |
dc.rights | Copyright © 2022 American Chemical Society. Open Access article licensed under Creative Commons Attribution CC-BY 4.0. | en |
dc.subject | QD Chemistry | en |
dc.subject | DAS | en |
dc.subject.lcc | QD | en |
dc.title | Sulfur and phosphorus oxyacid radicals | en |
dc.type | Journal article | en |
dc.description.version | Publisher PDF | en |
dc.contributor.institution | University of St Andrews. EaSTCHEM | en |
dc.contributor.institution | University of St Andrews. School of Chemistry | en |
dc.identifier.doi | https://doi.org/10.1021/acs.jpca.1c10455 | |
dc.description.status | Peer reviewed | en |
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