Thorium nanochemistry: The solution structure of the Th(iv)-hydroxo pentamer

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dc.identifier.uri http://dx.doi.org/10.15488/2212
dc.identifier.uri http://www.repo.uni-hannover.de/handle/123456789/2237
dc.contributor.author Walther, C.
dc.contributor.author Rothe, J.
dc.contributor.author Schimmelpfennig, B.
dc.contributor.author Fuss, M.
dc.date.accessioned 2017-11-01T13:25:06Z
dc.date.available 2017-11-01T13:25:06Z
dc.date.issued 2012
dc.identifier.citation Walther, C.; Rothe, J.; Schimmelpfennig, B.; Fuss, M.: Thorium nanochemistry: The solution structure of the Th(iv)-hydroxo pentamer. In: Dalton Transactions 41 (2012), Nr. 36, S. 10941-10947. DOI: https://doi.org/10.1039/c2dt30243h
dc.description.abstract Tetravalent thorium exhibits a strong tendency towards hydrolysis and subsequent polymerization. Polymeric species play a crucial role in understanding thorium solution chemistry, since their presence causes apparent solubility several orders of magnitude higher than predicted by thermodynamic data bases. Although electrospray mass spectrometry (ESI MS) identifies Th(iv) dimers and pentamers unequivocally as dominant species close to the solubility limit, the molecular structure of Th 5(OH) y polymers was hitherto unknown. In the present study, X-ray absorption fine structure (XAFS) spectroscopy, high energy X-ray scattering (HEXS) measurements, and quantum chemical calculations are combined to solve the pentamer structure. The most favourable structure is represented by two Th(iv) dimers linked by a central Th(iv) cation through hydroxide bridges. © 2012 The Royal Society of Chemistry. eng
dc.language.iso eng
dc.publisher Cambridge : Royal Society of Chemistry
dc.relation.ispartofseries Dalton Transactions 41 (2012), Nr. 36
dc.rights Es gilt deutsches Urheberrecht. Das Dokument darf zum eigenen Gebrauch kostenfrei genutzt, aber nicht im Internet bereitgestellt oder an Außenstehende weitergegeben werden. Dieser Beitrag ist aufgrund einer (DFG-geförderten) Allianz- bzw. Nationallizenz frei zugänglich.
dc.subject Dominant species eng
dc.subject Electrospray mass spectrometry eng
dc.subject High energy x-rays eng
dc.subject Nano chemistry eng
dc.subject Orders of magnitude eng
dc.subject Pentamers eng
dc.subject Polymeric species eng
dc.subject Quantum chemical calculations eng
dc.subject Solubility limits eng
dc.subject Solution chemistry eng
dc.subject Solution structures eng
dc.subject Thermodynamic data eng
dc.subject X ray absorption fine structures eng
dc.subject Polymers eng
dc.subject Quantum chemistry eng
dc.subject Solubility eng
dc.subject Thorium eng
dc.subject Dimers eng
dc.subject.ddc 540 | Chemie ger
dc.title Thorium nanochemistry: The solution structure of the Th(iv)-hydroxo pentamer eng
dc.type Article
dc.type Text
dc.relation.issn 1477-9226
dc.relation.doi https://doi.org/10.1039/c2dt30243h
dc.bibliographicCitation.issue 36
dc.bibliographicCitation.volume 41
dc.bibliographicCitation.firstPage 10941
dc.bibliographicCitation.lastPage 10947
dc.description.version publishedVersion
tib.accessRights frei zug�nglich


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