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Crystal structure of disordered diethylammonium oxo(1-hydroxyethane-1,1-diphosphonato)vanadate(IV) hydrate

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Abstract

Crystals of diethylammonium oxo(1-hydroxyethane-1,1-diphosphonato)vanadate(IV) hydrate have been synthesized, and their structure has been determined by X-ray diffraction analysis. In the crystal, three metal atoms of the disordered anionic complex in two orientations (the occupancies are 0.67 and 0.33) are linked in pairs by the tetradentate bis(chelate)-μ2-bridging ligands Hn L 4 − n with the formation of the [V3O4(Hn L)3] cyclic trimers. As a first approximation, the coordination polyhedron of the V(1) and V(2) atoms in both orientations can be considered a tetragonal pyramid completed to a strongly distorted octahedron by the O atom of the terminal hydroxo ligand in the case of the V(2) atom or by the μ3-bridging oxo O atom for the V(1) atom. The diethylammonium cations and crystallization water molecules are disordered. The structural formula of the complex can be most correctly represented as [(C2H5)2NH2]2[{V4+O(μ 2-H2 L)}3 (μ3-O)]0.67[{V4+(OH)(μ2-HL)} 3(μ3-O)]0.33 · 2H2O.

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Authors and Affiliations

  1. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninskii pr. 31, Moscow, 117907, Russia

    G. G. Aleksandrov & V. S. Sergienko

  2. State Enterprise “Chemical Engineering Laboratory”, Kaluga, Russia

    E. G. Afonin

Authors
  1. G. G. Aleksandrov
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  2. V. S. Sergienko
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  3. E. G. Afonin
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Translated from Kristallografiya, Vol. 46, No. 1, 2001, pp. 53–57.

Original Russian Text Copyright © 2001 by Aleksandrov, Sergienko, Afonin.

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Aleksandrov, G.G., Sergienko, V.S. & Afonin, E.G. Crystal structure of disordered diethylammonium oxo(1-hydroxyethane-1,1-diphosphonato)vanadate(IV) hydrate. Crystallogr. Rep. 46, 46–50 (2001). https://doi.org/10.1134/1.1343125

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  • DOI: https://doi.org/10.1134/1.1343125

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