Published in
American Chemical Society, Inorganic Chemistry, 22(51), p. 12288-12300, 2012
DOI: 10.1021/ic301565p
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Aqueous Uranium(VI) Complexes with Acetic and Succinic Acid: Speciation and Structure Revisited
,
Harald Foerstendorf,
Andreas C. Scheinost,
Gert Bernhard
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- Must not violate ACS ethical Guidelines
- Must obtain written permission from Editor
- Must not violate ACS ethical Guidelines
Abstract
By application of IR, UV−vis and EXAFS spectroscopy coupled with factor analysis (FA) and DFT calculations it is shown that the aqueous systems of uranium(VI) with acetic (ac) and succinic (suc) acid give complexes of the same stoichiometry: 1:1, 1:2, and 1:3. FA enables a separate investigation of the acting single species. This allows an identification of the prevailing mode of coordination for each complex by interpreting the observed structural parameters (EXAFS) and the shifts of important vibration modes (IR).