Please use this identifier to cite or link to this item: http://hdl.handle.net/10316/5250
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dc.contributor.authorCaldeira, M. Madalena-
dc.contributor.authorRamos, M. Luísa-
dc.contributor.authorPereira, Gilberto G.-
dc.contributor.authorGil, Victor M. S.-
dc.date.accessioned2008-09-01T15:06:31Z-
dc.date.available2008-09-01T15:06:31Z-
dc.date.issued2000en_US
dc.identifier.citationPolyhedron. 19:2 (2000) 193-197en_US
dc.identifier.urihttp://hdl.handle.net/10316/5250-
dc.description.abstractMeso-2,3-dimercaptosuccinic acid (DMSA), which is used as an antidote for heavy metal poisoning and in complexes of 99mTc for diagnostic purposes, forms several complexes with tungsten(VI) in aqueous solutions, as found by 1H, 13C, 17O and 183W NMR spectroscopy. In the pH range ~4-7, there are four complexes in which the acid acts as a bidentate ligand through one carboxyl group and the adjacent sulfhydryl group (a dominant 2:2 species and three 1:2 metal-ligand isomers are proposed) and 2:1 complexes in which the ligand is twisted in order to use the four binding groups. It is proposed that in both the 2:2 and 2:1 cases the S atoms bridge the two W atoms. At lower pH, the acid is again predominantly a tetradentate ligand in m:n associations with the metal (m>n).en_US
dc.description.urihttp://www.sciencedirect.com/science/article/B6TH8-40NG3G0-15/1/148f75794ab8134c22a0790b94e67915en_US
dc.format.mimetypeaplication/PDFen
dc.language.isoengeng
dc.rightsopenAccesseng
dc.subjectmeso-2,3-dimercaptosuccinic aciden_US
dc.subjectMultinuclear NMRen_US
dc.subjectTunsgstenen_US
dc.titleA multinuclear NMR study of the complexation of W(VI) with meso-2,3-dimercaptosuccinic acid (DMSA)en_US
dc.typearticleen_US
item.grantfulltextopen-
item.fulltextCom Texto completo-
item.openairetypearticle-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.cerifentitytypePublications-
item.languageiso639-1en-
crisitem.author.orcid0000-0001-6652-0031-
Appears in Collections:FCTUC Química - Artigos em Revistas Internacionais
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