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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 B-11-NMR) the formation of a weak Eu(III) borate complex (lg beta(11) similar to 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 details:Juliane Schott, Jerome Kretzschmar, Margret Acker, Sascha EidnerORCiD, Michael Uwe KumkeORCiDGND, Bjoern Drobot, Astrid Barkleit, Steffen Taut, Vinzenz Brendler, Thorsten Stumpf
DOI:https://doi.org/10.1039/c4dt00843j
ISSN:1477-9226
ISSN:1477-9234
Pubmed ID:https://pubmed.ncbi.nlm.nih.gov/24849080
Title of parent work (English):Dalton transactions : a journal of inorganic chemistry, including bioinorganic, organometallic, and solid-state chemistry
Publisher:Royal Society of Chemistry
Place of publishing:Cambridge
Publication type:Article
Language:English
Year of first publication:2014
Publication year:2014
Release date:2017/03/27
Volume:43
Issue:30
Number of pages:13
First page:11516
Last Page:11528
Funding institution:Federal Ministry of Economics and Energy (BMWi) [02E11021, 02E11011]; Deutsches Elektronen Synchrotron (DESY) Hamburg, Germany [I-20130337]
Organizational units:Mathematisch-Naturwissenschaftliche Fakultät / Institut für Chemie
Peer review:Referiert
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