Abstract
The dynamics of the fluoride and proton sublattices and the electrophysical properties of NH4SbF4 (I) and NH4Sb2F7 (II) in the temperature range 210-435 K were studied by 19F and 1H NMR and impedance spectroscopy. Types of ionic motion were determined and their activation energies were estimated. The structural phase transitions in I and II form the high-temperature modifications β-NH4SbF4 and β-NH4Sb2F7, having high ionic (superionic) conductivity in the range 425-435 K (σ∼1.9-1.5×10-3 S/cm).
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Kavun, V.Y., Sergienko, V.I., Sorokin, N.I. et al. Ionic Mobility, Phase Transitions, and Electric Conductivity in Ammonium Tetrafluoroantimonate and Heptafluorodiantimonate(III). Journal of Structural Chemistry 42, 570–577 (2001). https://doi.org/10.1023/A:1013133607775
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DOI: https://doi.org/10.1023/A:1013133607775