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19F and203,205Tl NMR and structural transformations in chain ammonium and thallium hexafluorozirconates and hexafluorohafnates

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Abstract

Unusual structural transformations were observed in ammonium and thallium hexafluorozirconates and hexafluorohafnates at 300–420 K using high-resolution NMR for solids. It was established that at 300–350 K the initial chain structure of these compounds of orthorhombic symmetry undergoes a transition to disordered state, and at higher temperatures it is transformed into an ordered uniaxial structure which is similar to that of trigonal Cs2ZrF6 and Cs2HfF6.

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Authors and Affiliations

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

    V. Ya. Kavun, S. P. Gabuda, S. G. Kozlova & R. L. Davidovich

  2. Institute of Inorganic Chemistry, Siberian Branch, Russian Academy of Sciences, Russia

    V. Ya. Kavun, S. P. Gabuda, S. G. Kozlova & R. L. Davidovich

Authors
  1. V. Ya. Kavun
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  2. S. P. Gabuda
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  3. S. G. Kozlova
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  4. R. L. Davidovich
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Kavun, V.Y., Gabuda, S.P., Kozlova, S.G. et al. 19F and203,205Tl NMR and structural transformations in chain ammonium and thallium hexafluorozirconates and hexafluorohafnates. J Struct Chem 40, 541–547 (1999). https://doi.org/10.1007/BF02700716

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  • DOI: https://doi.org/10.1007/BF02700716

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