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Balance, uniformity, and asymmetry of the structure of volborthite Cu3(OH)2(V2O7)·2H2O

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Abstract

Four structural models of volborthite Cu3(OH)2(V2O7)·2H2O (a = 10.646(2) Å, b = 5.867(1) Å, c = 14.432(2) Å, β = 95.19(1)°, V = 897.7(5) Å3, Z = 4, R/R w = 0.038/0.046) calculated in the space groups determined from the systematic absences are compared. Based on the structure balance and the similarity of constituting polyhedra, values of the R factor, and isotropic thermal parameters, the space group Ia is found to be preferable, which is the only possible asymmetric and uniform variant. Hydrogen atoms of OH-groups, oxygen atoms and, partially, hydrogen atoms of water are localized.

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Authors and Affiliations

  1. Irkutsk State Railway University, Irkutsk, Russia

    A. A. Kashaev

  2. Saint-Petersburg State University, Irkutsk, Russia

    I. V. Rozhdestvenskaya & I. I. Bannova

  3. A. P. Vinogradov Institute of Geochemistry, Siberian Division, Russian Academy of Sciences, Irkutsk, Russia

    A. N. Sapozhnikov

  4. Irkutsk State Pedagogical University, Irkutsk, Russia

    O. D. Glebova

Authors
  1. A. A. Kashaev
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  2. I. V. Rozhdestvenskaya
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  3. I. I. Bannova
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  4. A. N. Sapozhnikov
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  5. O. D. Glebova
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Corresponding author

Correspondence to A. N. Sapozhnikov.

Additional information

Original Russian Text Copyright © 2008 by A. A. Kashaev, I. V. Rozhdestvenskaya, I. I. Bannova, A. N. Sapozhnikov, and O. D. Glebova

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Translated from Zhurnal Strukturnoi Khimii, Vol. 49, No. 4, pp. 736–740, May–June, 2008.

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Kashaev, A.A., Rozhdestvenskaya, I.V., Bannova, I.I. et al. Balance, uniformity, and asymmetry of the structure of volborthite Cu3(OH)2(V2O7)·2H2O. J Struct Chem 49, 708–711 (2008). https://doi.org/10.1007/s10947-008-0098-0

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  • DOI: https://doi.org/10.1007/s10947-008-0098-0

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