Synthesis and Characterization of a Water Stable Uranyl(V) Complex

Radmila Faizova; Rosario Scopelliti; Anne-Sophie Chauvin; Marinella Mazzanti

doi:10.1021/jacs.8b07885

Synthesis and Characterization of a Water Stable Uranyl(V) Complex

J Am Chem Soc. 2018 Oct 24;140(42):13554-13557. doi: 10.1021/jacs.8b07885. Epub 2018 Oct 12.

Authors

Radmila Faizova¹, Rosario Scopelliti¹, Anne-Sophie Chauvin¹, Marinella Mazzanti¹

Affiliation

¹ Institut des Sciences et Ingénierie Chimiques , Ecole Polytechnique Fédérale de Lausanne (EPFL) , CH-1015 Lausanne , Switzerland.

PMID: 30289696
DOI: 10.1021/jacs.8b07885

Abstract

We have identified a polydentate aminocarboxylate ligand that stabilizes uranyl(V) in water. The mononuclear [UO₂(dpaea)]X, (dpaeaH₂ = Bis(pyridyl-6-methyl-2-carboxylate)-ethylamine; X = CoCp₂^*+ or X = K(2.2.2.cryptand) complexes have been isolated from anaerobic organic solution, crystallographically and spectroscopically characterized both in water and organic solution. These complexes disproportionate at pH ≤ 6, but are stable in anaerobic water at pH 7-10 for several days.

Publication types

Research Support, Non-U.S. Gov't