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Ion mobility, phase transitions, and ion transport in potassium-ammonium hexafluorozirconates

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Abstract

The mobility of fluoride and ammonium ions (180–480 K) in compounds K2− n (NH4)nZrF6 (0.2 ≤ n ≤ 1.70) was investigated by 19F and 1H NMR. Correlations have been found between the composition of the cation sublattice, the character of ion motions, and phase transition temperature in these compounds. The hightemperature modifications with n ≥ 0.85 of the compounds are characterized by translational diffusion of fluoride and ammonium ions and by uniaxial anisotropy of the 19F magnetic shielding tensor. The electrophysical characteristics of these compounds were studied in the temperature range 300–480 K.

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Authors and Affiliations

  1. Institute of Chemistry, Far East Division, Russian Academy of Sciences, Vladivostok

    V. Ya. Kavun, N. A. Didenko, A. B. Slobodyuk, I. A. Tkachenko, A. V. Gerasimenko & V. I. Sergienko

  2. Institute of Solid State Chemistry and Mechanochemistry, Siberian Division, Russian Academy of Sciences, Novosibirsk

    N. F. Uvarov

Authors
  1. V. Ya. Kavun
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  2. N. A. Didenko
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  3. A. B. Slobodyuk
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  4. I. A. Tkachenko
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  5. A. V. Gerasimenko
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  6. N. F. Uvarov
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  7. V. I. Sergienko
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Additional information

Original Russian Text Copyright © 2005 by V. Ya. Kavun, N. A. Didenko, A. B. Slobodyuk, I. A. Tkachenko, A. V. Gerasimenko, N. F. Uvarov, and V. I. Sergienko

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Translated from Zhurnal Strukturnoi Khimii, Vol. 46, No. 5, pp. 869–878, September–October, 2005.

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Kavun, V.Y., Didenko, N.A., Slobodyuk, A.B. et al. Ion mobility, phase transitions, and ion transport in potassium-ammonium hexafluorozirconates. J Struct Chem 46, 839–847 (2005). https://doi.org/10.1007/s10947-006-0208-9

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  • DOI: https://doi.org/10.1007/s10947-006-0208-9

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