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- Title
Characterization of pentavalent and hexavalent americium complexes in nitric acid using X-ray absorption fine structure spectroscopy and first-principles modeling.
- Authors
Riddle, Catherine; Czerwinski, Kenneth; Kim, Eunja; Paviet, Patricia; Weck, Philippe; Poineau, Frederic; Conradson, Steven
- Abstract
The speciation of pentavalent and hexavalent americium (Am) complexes in nitric acid have been studied by X-ray absorption fine structure spectroscopy, UV-visible spectroscopy, and density functional theory. Calculated bond distances for the Am(VI) complex are in reasonable agreement with EXAFS data and suggest the presence of a mixture of AmO and AmO as well as a slightly higher kinetic stability for Am(VI) compared to Am(V).
- Subjects
AMERICIUM compounds; X-ray absorption; DENSITY functional theory; CHEMICAL kinetics; CHEMICAL stability; ANALYTICAL radiochemistry
- Publication
Journal of Radioanalytical & Nuclear Chemistry, 2016, Vol 309, Issue 3, p1087
- ISSN
0236-5731
- Publication type
Article
- DOI
10.1007/s10967-016-4704-x