Uranyl complexation in fluorinated acids (HF, HBF4, HPF6, HTf2N): a combined experimental and theoretical study.

Abstract

The aim of this work is to characterize the complexation ability of F-, BF4-, PF6-, and Tf2N- toward uranyl ions in aqueous solution. These anions were chosen as they represent the anionic part of the most studied room-temperature ionic liquids. Time-resolved emission spectroscopy and X-ray absorption spectroscopy were used to retrieve structural data on the complexes formed. The results obtained were compared with computational data. Tf2N- does not complex uranyl, even at high concentration. Other fluorinated acids form inner-sphere complexes with U(VI), in a monodentate fashion in the case of BF4- and PF6-.

Cite this paper

@article{Gaillard2005UranylCI, title={Uranyl complexation in fluorinated acids (HF, HBF4, HPF6, HTf2N): a combined experimental and theoretical study.}, author={Clotilde Gaillard and Antoine El Azzi and Isabelle Billard and H{\'e}l{\`e}ne Bolvin and Christoph Hennig}, journal={Inorganic chemistry}, year={2005}, volume={44 4}, pages={852-61} }