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Radiochimica Acta

International Journal for chemical aspects of nuclear science and technology

Editor-in-Chief: Qaim, Syed M.

IMPACT FACTOR 2018: 1.339

CiteScore 2018: 1.20

SCImago Journal Rank (SJR) 2018: 0.333
Source Normalized Impact per Paper (SNIP) 2018: 0.720

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TRLFS and EXAFS investigations of lanthanide and actinide complexation by triflate and perchlorate in an ionic liquid

Silvia Stumpf / Isabelle Billard / C. Gaillard / Petra J. Panak / K. Dardenne
Published Online: 2009-09-25 | DOI: https://doi.org/10.1524/ract.2008.1461

The solvation of the Eu-perchlorate (ClO4) and triflate (CF3SO3, OTf) salts as well as of Cm(ClO4)3 and Am(ClO4)3 in the ionic liquid C4mimTf2N (1-butyl-3-methylimidazolium-bis(trifluoromethylsulfonyl)imide) has been comparatively investigated by application of laser fluorescence spectroscopy and X-ray absorption spectroscopy. Moreover, the ClO4/OTf ligand exchange reaction for the two actinide cations has been analyzed by the same spectroscopic techniques. A structural model for the different complexes was determined by the interpretation of the spectroscopic data. The lanthanide and the two actinide cations show the same coordination in C4mimTf2N. Moreover, a sequence for the strength of complexing ligands could be deduced from the spectroscopic data for the lanthanide and the two actinides: ClO4>OTf≥Tf2N>H2O.

Keywords: Ionic liquids; Lanthanides; Actinides; Eu(III); Cm(III); Am (III); TRLFS; XAFS; Complexation; Luminescence

About the article

Received: 2007-04-23

Accepted: 2007-07-06

Published Online: 2009-09-25

Published in Print: 2008-01-01

Citation Information: Radiochimica Acta, Volume 96, Issue 1/2008, Pages 1–10, ISSN (Print) 0033-8230, DOI: https://doi.org/10.1524/ract.2008.1461.

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