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Formation of a Eu(III) borate solid species from a weak Eu(III) borate complex in aqueous solution

  • In the presence of polyborates (detected by 11B-NMR) the formation of a weak Eu(III) borate complex (lg β11 ∼ 2, estimated) was observed by time-resolved laser-induced fluorescence spectroscopy (TRLFS). This complex is a precursor for the formation of a solid Eu(III) borate species. The formation of this solid in solution was investigated by TRLFS as a function of the total boron concentration: the lower the total boron concentration, the slower is the solid formation. The solid Eu(III) borate was characterized by IR spectroscopy, powder XRD and solid-state TRLFS. The determination of the europium to boron ratio portends the existence of pentaborate units in the amorphous solid.

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Author:Juliane Schott, Jerome Kretzschmar, Margret Acker, Sascha Eidner, Michael Uwe KumkeORCiDGND, Björn Drobot, Astrid Barkleit, Steffen Taut, Vinzenz Brendler, Thorsten Stumpf
Series (Serial Number):Postprints der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe (277)
Document Type:Postprint
Date of first Publication:2014/04/28
Year of Completion:2014
Publishing Institution:Universität Potsdam
Release Date:2016/11/03
Source:Dalton Trans. (2014) Nr. 43, S. 11516-11528. - DOI: 10.1039/C4DT00843J
Organizational units:Mathematisch-Naturwissenschaftliche Fakultät / Institut für Chemie
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 54 Chemie / 540 Chemie und zugeordnete Wissenschaften
Peer Review:Referiert
Publication Way:Open Access
Licence (English):License LogoCreative Commons - Attribution 3.0 unported