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Issue 12, 2017
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Inner to outer-sphere coordination of plutonium(IV) with N,N-dialkyl amide: influence of nitric acid

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Abstract

N,N-Dialkylamides are extensively studied as alternative organic ligands to achieve the extraction and separation of uranium(VI) and plutonium(IV). We report here the coordination structures of the plutonium(IV) ion with N,N-di(2-ethylhexyl)-n-butanamide as a function of nitric acid concentration in the aqueous phase. The coordination structure of Pu(IV) evolves gradually with increasing nitric acid concentration from an inner-sphere with two coordinated amide ligands toward an outer-sphere hexanitrate complex with only nitrate ions in the first coordination sphere and protonated amide ligands in the outer shell.

Graphical abstract: Inner to outer-sphere coordination of plutonium(iv) with N,N-dialkyl amide: influence of nitric acid

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Publication details

The article was received on 04 Jan 2017, accepted on 13 Feb 2017, published on 14 Feb 2017 and first published online on 14 Feb 2017


Article type: Communication
DOI: 10.1039/C7DT00031F
Citation: Dalton Trans., 2017,46, 3812-3815
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    Inner to outer-sphere coordination of plutonium(IV) with N,N-dialkyl amide: influence of nitric acid

    E. Acher, T. Dumas, C. Tamain, N. Boubals, P. L. Solari and D. Guillaumont, Dalton Trans., 2017, 46, 3812
    DOI: 10.1039/C7DT00031F

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