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



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



Dalton Transactions 43(30): 11516-11528



In the presence of polyborates (detected by (11)B-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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Accession: 053285470

Download citation: RISBibTeXText

PMID: 24849080

DOI: 10.1039/c4dt00843j


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