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Issue 30, 2014
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Formation of a Eu(III) borate solid species from a weak Eu(III) borate complex in aqueous solution

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Abstract

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.

Graphical abstract: Formation of a Eu(iii) borate solid species from a weak Eu(iii) borate complex in aqueous solution

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Publication details

The article was received on 20 Mar 2014, accepted on 27 Apr 2014 and first published on 28 Apr 2014


Article type: Paper
DOI: 10.1039/C4DT00843J
Citation: Dalton Trans., 2014,43, 11516-11528
  • Open access: Creative Commons BY-NC license
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    Formation of a Eu(III) borate solid species from a weak Eu(III) borate complex in aqueous solution

    J. Schott, J. Kretzschmar, M. Acker, S. Eidner, M. U. Kumke, B. Drobot, A. Barkleit, S. Taut, V. Brendler and T. Stumpf, Dalton Trans., 2014, 43, 11516
    DOI: 10.1039/C4DT00843J

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