Highly selective extraction of the uranyl ion with hydrophobic amidoxime-functionalized ionic liquids via η2 coordination

Patrick S. Barber; Steven P. Kelley; Robin D. Rogers

doi:10.1039/C2RA21344C

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Highly selective extraction of the uranyl ion with hydrophobic amidoxime-functionalized ionic liquidsvia η² coordination†

Patrick S. Barber,^a Steven P. Kelley^a and Robin D. Rogers*^a

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^a Center for Green Manufacturing and Department of Chemistry, The University of Alabama, Tuscaloosa, AL, USA
E-mail: rdrogers@as.ua.edu
Fax: +1 205 348 0823
Tel: +1 205 348 4323

Abstract

Hydrophobic, amidoxime-functionalized ionic liquids selectively extract UO₂²⁺ from aqueous solution via η² coordination as demonstrated here with extraction, spectroscopic, and crystallographic studies which prove the amidoxime-uranyl coordination mode and extraction mechanism.

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Article information

DOI: https://doi.org/10.1039/C2RA21344C
Article type: Paper
Submitted: 03 Jul 2012
Accepted: 23 Jul 2012
First published: 25 Jul 2012

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RSC Adv., 2012,2, 8526-8530

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Highly selective extraction of the uranyl ion with hydrophobic amidoxime-functionalized ionic liquids via η² coordination

P. S. Barber, S. P. Kelley and R. D. Rogers, RSC Adv., 2012, 2, 8526 DOI: 10.1039/C2RA21344C

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