Show simple item record

dc.contributor.authorPike, Sarahen
dc.contributor.authorHutchinson, JJen
dc.contributor.authorHunter, Christopheren
dc.date.accessioned2017-07-06T10:15:51Z
dc.date.available2017-07-06T10:15:51Z
dc.date.issued2017-05-17en
dc.identifier.issn0002-7863
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/265199
dc.description.abstractUV/vis absorption titrations have been used to investigate the formation of H-bonded complexes between anionic H-bond acceptors (HBAs) and neutral H-bond donors (HBDs) in organic solvents. Complexes formed by three different HBDs with 15 different anions were studied in chloroform and in acetonitrile. The data were used to determine self-consistent HBA parameters (β) for chloride, bromide, iodide, phosphate diester, acetate, benzoate, perrhenate, nitrate, triflimide, perchlorate, hexafluorophosphate, hydrogen sulfate, methyl sulfonate, triflate, and perfluorobutyl sulfonate. The results demonstrate the transferability of H-bond parameters for anions between different solvents and different HBD partners, allowing reliable prediction of anion recognition properties in other scenarios. Carboxylates are the strongest HBAs studied, with β parameters (≈ 15) that are significantly higher than those of neutral organic HBAs, and the non-coordinating anion hexafluorophosphate is the weakest acceptor, with a β parameter comparable to that of pyridine. The effects of ion pairing with the counter-cation were found to be negligible, provided small polar cations were avoided in the less polar solvent (chloroform). There is no correlation between the H-bonding properties of the anions and the pK$_{a}$ values of the conjugate acids.
dc.description.sponsorshipThe authors acknowledge financial support from the Engineering and Physical Sciences Research Council (EPSRC).
dc.languageengen
dc.language.isoenen
dc.publisherAmerican Chemical Society
dc.rightsAttribution 4.0 Internationalen
dc.rightsAttribution 4.0 Internationalen
dc.rightsAttribution 4.0 Internationalen
dc.rightsAttribution 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.titleH-Bond Acceptor Parameters for Anionsen
dc.typeArticle
prism.endingPage6706
prism.issueIdentifier19en
prism.publicationDate2017en
prism.publicationNameJournal of the American Chemical Societyen
prism.startingPage6700
prism.volume139en
dc.identifier.doi10.17863/CAM.11253
dcterms.dateAccepted2017-03-27en
rioxxterms.versionofrecord10.1021/jacs.7b02008en
rioxxterms.versionVoRen
rioxxterms.licenseref.urihttp://creativecommons.org/licenses/by/4.0/en
rioxxterms.licenseref.startdate2017-05-17en
dc.contributor.orcidHunter, Christopher [0000-0002-5182-1859]
dc.identifier.eissn1520-5126
rioxxterms.typeJournal Article/Reviewen
pubs.funder-project-idEPSRC (EP/K025627/2)
cam.issuedOnline2017-05-04en
cam.orpheus.successThu Jan 30 10:20:13 GMT 2020 - The item has an open VoR version.*
rioxxterms.freetoread.startdate2100-01-01


Files in this item

Thumbnail
Thumbnail

This item appears in the following Collection(s)

Show simple item record

Attribution 4.0 International
Except where otherwise noted, this item's licence is described as Attribution 4.0 International