Evidence for the formation of UO2(NO3)42− in an ionic liquid by EXAFS

Evidence for the formation of UO2(NO3)42− in an ionic liquid by EXAFS

The complexation between uranium(VI) and nitrate ions in a hydrophobic ionic liquid (IL), namely [BMI][NO3] (BMI = 1-butyl-3-methylimidazolium+), is investigated by EXAFS spectroscopy. It was performed by dissolution of uranyl nitrate UO2(NO3)2·6H2O or UO2(Tf2N)2 (Tf2N = bis(trifluoromethylsulfonyl)...

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Veröffentlicht in:Dalton transactions : an international journal of inorganic chemistry 2012, Vol.41 (18), p.5476-5479
Hauptverfasser: Gaillard, Clotilde, Klimchuk, Olga, Ouadi, Ali, Billard, Isabelle, Hennig, Christoph
Format: Artikel
Sprache:eng
Schlagworte:
Chemical Sciences
Coordination chemistry
Radiochemistry
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Zusammenfassung:The complexation between uranium(VI) and nitrate ions in a hydrophobic ionic liquid (IL), namely [BMI][NO3] (BMI = 1-butyl-3-methylimidazolium+), is investigated by EXAFS spectroscopy. It was performed by dissolution of uranyl nitrate UO2(NO3)2·6H2O or UO2(Tf2N)2 (Tf2N = bis(trifluoromethylsulfonyl)imide (CF3SO2)2N−). The formation of the complex UO2(NO3)42− is evidenced.
ISSN:1477-9226
1477-9234
DOI:10.1039/c2dt30205e