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Crystal structure of two new molecular adducts of uranyl nitrate with 2,2′-6,2″-terpyridine

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Abstract

The crystal structures of two uranyl nitrate complexes with 2,2′-6,2″-terpyridine (Trpy), [(UO (Trpy)-[(UO2)2(Trpy)2(OH)2][UO2(NO3)2(OH)2] · 2CH3OH (I) and [(UO2)2(Trpy)2(OH)2]2[UO2(NO3)3(H2O)](NO3)3 · 3H2O (II), were studied. Compound I consists of the centrosymmetric dimeric cations [(UO2)2(Trpy)2(OH)2]2+, the anions [UO2(NO3)2(OH)2]2−, and solvation methanol molecules. Complex II consists of dimeric cations [(UO2)2(Trpy)2(OH)2]2+, the complex anions [UO2(NO3)3(H2O)]−, nitrate anions, and water molecules of crystallization. The uranium atom in the [UO2(NO3)3(H2O)]− anion in II has an unusual coordination polyhedron representing a hexagonal bipyramid in which one oxygen atom in the equatorial plane is replaced by two atoms equidistant from this plane.

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Authors and Affiliations

  1. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninskii pr. 31, Moscow, 117071, Russia

    I. A. Charushnikova

  2. Nuclear Energy Commissariat of France, France

    C. Den Auwer

Authors
  1. I. A. Charushnikova
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  2. C. Den Auwer
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Original Russian Text © I.A. Charushnikova, C. Den Auwer, 2007, published in Koordinatsionnaya Khimiya, 2007, Vol. 33, No. 1, pp. 55–62.

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Charushnikova, I.A., Den Auwer, C. Crystal structure of two new molecular adducts of uranyl nitrate with 2,2′-6,2″-terpyridine. Russ J Coord Chem 33, 53–60 (2007). https://doi.org/10.1134/S1070328407010083

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  • DOI: https://doi.org/10.1134/S1070328407010083

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