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Behavior of Np(V), Pu(V), and Am(V) in solutions of pyridine-2,6-dicarboxylic (dipicolinic) acid and synthesis of crystalline compounds

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Abstract

The behavior of An(V) (An = Np, Pu, and Am) in aqueous solutions of dipicolinic acid (in particular, the resistance to disproportionation) was studied. Taking these data into account, procedures were developed for preparing crystalline An(V) dipicolinates. Crystals of Li3[AnO2(DPA)2]·nH2O (n = 4 and 6) of X-ray quality were prepared from aqueous solutions with pH 2–3. The trends in variation of the bond lengths in the complex compounds of An(V) and An(VI) with dipicolinic acid, caused by actinide contraction, were analyzed.

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Authors and Affiliations

  1. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninskii pr. 31, korp. 4, Moscow, 119071, Russia

    A. B. Yusov, M. S. Grigor’ev, A. M. Fedoseev, V. P. Shilov & A. V. Gogolev

  2. CEA Marcoule, DRCP/SCPS, BP 17171, 30207, Bagnols sur Cèze Cedex, France

    Ph. Moisy

Authors
  1. A. B. Yusov
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  2. M. S. Grigor’ev
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  3. A. M. Fedoseev
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  4. Ph. Moisy
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  5. V. P. Shilov
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  6. A. V. Gogolev
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Corresponding author

Correspondence to M. S. Grigor’ev.

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Original Russian Text © A.B. Yusov, M.S. Grigor’ev, A.M. Fedoseev, Ph. Moisy, V.P. Shilov, A.V. Gogolev, 2015, published in Radiokhimiya, 2015, Vol. 57, No. 1, pp. 7–18.

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Yusov, A.B., Grigor’ev, M.S., Fedoseev, A.M. et al. Behavior of Np(V), Pu(V), and Am(V) in solutions of pyridine-2,6-dicarboxylic (dipicolinic) acid and synthesis of crystalline compounds. Radiochemistry 57, 6–19 (2015). https://doi.org/10.1134/S1066362215010026

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  • DOI: https://doi.org/10.1134/S1066362215010026

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