Synthesis and complex study of potassium ammonium hexafluorozirconates:: Ion mobility, phase transitions, and ionic conductivity in K2-n (NH4)nZrF6 compounds as probed by NMR, DTA, and impedance spectroscopy

被引：8
|
作者：
Kavun, V. Ya.
Didenko, N. A.
Gerasimenko, A. V.
Slobodyuk, A. B.
Tkachenko, I. A.
Uvarov, N. F.
Sergienko, V. I.
机构：
[1] Russian Acad Sci, Inst Chem, Far E Div, Vladivostok 690022, Russia
[2] Russian Acad Sci, Siberian Div, Inst Solid State Chem & Mechanochem, Novosibirsk 630128, Russia
来源：
RUSSIAN JOURNAL OF INORGANIC CHEMISTRY | 2006年 / 51卷 / 04期
基金：
俄罗斯基础研究基金会;
关键词：
Anisotropy; Phase Transition; Fluoride; Ionic Conductivity; Impedance Spectroscopy;
D O I：
10.1134/S0036023606040012
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The mobility of the fluoride and ammonium ions (180-480 K) in K2-n (NH4)(n)ZrF6 compounds (0.2 <= n <= 1.80) has been studied by F-19 and H-1 NMR. Correlations between the composition of the cationic sublattice, the character of ion motions, and the phase-transition temperature in these compounds have been established. The high-temperature modifications of compounds with n >= 1 are characterized by translational diffusion of ions in the fluoride and ammonium sublattices, and their F-19 NMR spectra are characterized by uniaxial chemical shift anisotropy. The electrophysical properties of these compounds are studied in the range 300-480 K.
引用
收藏
页码：513 / 520
页数：8
相关论文
共 8 条
  • [1] Synthesis and complex study of potassium ammonium hexafluorozirconates: Ion mobility, phase transitions, and ionic conductivity in K2−n(NH4)nZrF6 compounds as probed by NMR, DTA, and impedance spectroscopy
    V. Ya. Kavun
    N. A. Didenko
    A. V. Gerasimenko
    A. B. Slobodyuk
    I. A. Tkachenko
    N. F. Uvarov
    V. I. Sergienko
    Russian Journal of Inorganic Chemistry, 2006, 51 : 513 - 520
  • [2] NMR, DTA, and impedance spectroscopy studies of ion mobility, phase transitions, and ionic conductivity in K1 − x(NH4)xSbF4 crystals
    V. Ya. Kavun
    N. F. Uvarov
    L. A. Zemnukhova
    A. S. Ulikhin
    N. A. Didenko
    O. V. Brovkina
    V. I. Sergienko
    Russian Journal of Electrochemistry, 2013, 49 : 633 - 644
  • [3] NMR, DTA, and impedance spectroscopy studies of ion mobility, phase transitions, and ionic conductivity in K1-x (NH4) x SbF4 crystals
    Kavun, V. Ya.
    Uvarov, N. F.
    Zemnukhova, L. A.
    Ulikhin, A. S.
    Didenko, N. A.
    Brovkina, O. V.
    Sergienko, V. I.
    RUSSIAN JOURNAL OF ELECTROCHEMISTRY, 2013, 49 (07) : 633 - 644
  • [4] Synthesis and complex investigation of potassium ammonium hexafluorozirconates: I. Synthesis and X-ray diffraction study of K2-x(NH4)xZrF6 (0 < x < 2) crystals
    A. V. Gerasimenko
    I. A. Tkachenko
    V. Ya. Kavun
    N. A. Didenko
    V. I. Sergienko
    Russian Journal of Inorganic Chemistry, 2006, 51 : 9 - 22
  • [5] Intramolecular mobility and phase transitions in ammonium oxofluoroniobates (NH4)2NbOF5 and (NR4)3NbOF6, a NMR and DFT study
    Kavun, V. Ya
    Gabuda, S. P.
    Kozlova, S. G.
    Tkachenko, I. A.
    Laptash, N. M.
    JOURNAL OF FLUORINE CHEMISTRY, 2011, 132 (10) : 698 - 702
  • [6] Synthesis and complex investigation of potassium ammonium hexafluorozirconates:: I.: Synthesis and X-ray diffraction study of K2-x (NH4)xZrF6 (0&lt;x&lt;2) crystals
    Gerasimenko, A. V.
    Tkachenko, I. A.
    Kavun, V. Ya.
    Didenko, N. A.
    Sergienko, V. I.
    RUSSIAN JOURNAL OF INORGANIC CHEMISTRY, 2006, 51 (01) : 9 - 22
  • [7] D-2 NMR AND CL-35 NUCLEAR-QUADRUPOLE-RESONANCE STUDY OF AMMONIUM-ION MOTION AND PHASE-TRANSITIONS IN NATURAL AND DEUTERATED (NH4)2TECL6
    DIMITROPOULOS, C
    PELZL, J
    BORSA, F
    PHYSICAL REVIEW B, 1990, 41 (07): : 3914 - 3919
  • [8] PHASE-TRANSITIONS AND IONIC MOTIONS IN AMMONIUM POTASSIUM HEXAFLUOROALUMINATES(III) WITH COMPOSITIONS OF (NH4)3-1K1[ALF6], NH4)3-2K2[ALF6] AS STUDIED BY H-1, F-19, AND AL-27 NUCLEAR MAGNETIC-RESONANCE
    HIROKAWA, K
    FURUKAWA, Y
    JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 1988, 49 (09) : 1047 - 1056
1