title: Evidence for the formation of UO2(NO3)4(2-) in an ionic liquid by EXAFS.
abstract: The complexation between uranium(vi) and nitrate ions in a hydrophobic ionic liquid (IL), namely [BMI][NO(3)] (BMI = 1-butyl-3-methylimidazolium(+)), is investigated by EXAFS spectroscopy. It was performed by dissolution of uranyl nitrate UO(2)(NO(3))(2)·6H(2)O or UO(2)(Tf(2)N)(2) (Tf(2)N = bis(trifluoromethylsulfonyl)imide (CF(3)SO(2))(2)N(-)). The formation of the complex UO(2)(NO(3))(4)(2-) is evidenced.
authors.affiliation: University of Lyon, Institut de Physique Nucléaire de Lyon, CNRS-IN2P3, 69622 Villeurbanne cedex, France. c.gaillard@ipnl.in2p3.fr
authors.forename: Clotilde
authors.initials: C
authors.lastname: Gaillard
authors.forename: Olga
authors.initials: O
authors.lastname: Klimchuk
authors.forename: Ali
authors.initials: A
authors.lastname: Ouadi
authors.forename: Isabelle
authors.initials: I
authors.lastname: Billard
authors.forename: Christoph
authors.initials: C
authors.lastname: Hennig