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Molybdate Complexes of Np(V) with Li+ and Na+ Cations in the Outer Sphere

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Abstract

Molybdate complexes of Np(V) with Li+ and Na+ cations of composition Li2[(NpO2)2(MoO4)2(H2O)]·8H2O (I), Na4[(NpO2)2(MoO4)3(H2O)]·5H2O (II), Na5[(NpO2)(MoO4)3]·5H2O (III) have been synthesized and structurally characterized. In compounds I–III, the coordination of Np atoms is constituted by pentagonal bipyramids. Structures I, II (NpO2+ : MoO42– ratio 1 : 1, 1 : 1.5) have a layered structure. In structure I, NpO2+ dioxocations are combined into pairs via the cation-cation interactions. Compound III (1 : 3 ratio) has a chain structure, with the lowest denticity of molybdate ions reached in this case.

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Funding

The study was carried out with partial financial support from the Ministry of Science and Education of the Russian Federation (project no. AAAA-A18-118040590105-4) and from the Program 35 of the Presidium of the Russian Academy of Sciences “Scientific foundations of development of new functional materials.”

The X-ray diffraction experiments were performed at the Center for Shared Use of Physical Methods of Investigation at the Frumkin, Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences.

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Authors and Affiliations

  1. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, 119071, Moscow, Russia

    M. S. Grigor’ev, I. A. Charushnikova & A. M. Fedoseev

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  1. M. S. Grigor’ev
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  2. I. A. Charushnikova
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  3. A. M. Fedoseev
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Correspondence to I. A. Charushnikova.

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Grigor’ev, M.S., Charushnikova, I.A. & Fedoseev, A.M. Molybdate Complexes of Np(V) with Li+ and Na+ Cations in the Outer Sphere. Radiochemistry 62, 465–473 (2020). https://doi.org/10.1134/S1066362220040037

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  • DOI: https://doi.org/10.1134/S1066362220040037

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