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Investigation of the structure and properties of K9H7(SO4)8 · H2O single crystals

  • Structure of Inorganic Compounds
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Abstract

The features of the conductivity of K9H7(SO4)8 · H2O single-crystal samples in the temperature range of superprotonic phase transition have been investigated. The K9H7(SO4)8 · H2O crystal structure is determined and refined taking into account hydrogen atoms by X-ray diffraction analysis at a temperature of 295 K: monoclinic symmetry, sp. gr. P21/c, Z = 4, a = 7.059(1), b = 19.773(1), c = 23.449(1) Å, β = 95.33(1)°, R 1/wR 2 = 2.71/1.71. The structural data obtained suggest that the occurrence of high conductivity in K9H7(SO4)8 · H2O crystals with an increase in temperature is related to the diffusion of crystallization water and motion of K ions, as well as to the transformation of the system of hydrogen bonds and protonic motion. The stabilization of the high-temperature superprotonic phase and its supercooling to low temperatures are due to the presence of channels for the motion of K ions and slow backward diffusion of water in the crystal.

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References

  1. E. D. Yakushkin and A. I. Baranov, Phys. Solid State 42(8), 1517 (2000).

    Article  ADS  Google Scholar 

  2. A. I. Baranov, Crystallogr. Rep. 48(6), 1012 (2003).

    Article  MathSciNet  ADS  Google Scholar 

  3. A. I. Baranov, L. A. Shuvalov, and N. M. Shchagina, JETP Lett. 36(11), 459 (1982).

    ADS  Google Scholar 

  4. I. P. Makarova, I. A. Verin, and N. M. Shchagina, Kristallografiya 31(1), 78 (1986).

    Google Scholar 

  5. A. I. Baranov, I. P. Makarova, L. A. Muradyan, et al., Sov. Phys. Crystallogr. 32(3), 400 (1987).

    Google Scholar 

  6. I. P. Makarova, T. S. Chernaya, A. A. Filaretov, et al., Crystallogr. Rep. 55(3), 393 (2010).

    Article  ADS  Google Scholar 

  7. L. A. Cowan, R. M. Morcos, N. Hatada, et al., Solid State Ionics 179, 305 (2008).

    Article  Google Scholar 

  8. A. I. Baranov, V. V. Grebenev, U. Bismaer, and J. Ludwig, Ferroelectrics 369, 108 (2008).

    Article  Google Scholar 

  9. A. I. Baranov, V. V. Sinitsyn, V. Yu. Vinnichenko, et al., Solid State Ionics 97, 153 (1997).

    Article  Google Scholar 

  10. S. Vrtnik, T. Apih, M. Klanjšek, et al., J. Phys.: Condens. Matter 16, 7967 (2004).

    Article  ADS  Google Scholar 

  11. V. Petříček, M. Dušek, and L. Palatinus, Works of the Institute of Physics (Praha, Czech Republic, 2005).

    Google Scholar 

  12. P. J. Becker and P. Coppens, Acta Crystallogr. A 30, 129 (1974).

    Article  ADS  Google Scholar 

  13. R. A. Dilanyan, L. V. Zorina, B. J. Narymbetov, et al., (in press).

  14. I. P. Makarova, Acta Crystallogr. B 49, 11 (1993).

    Article  Google Scholar 

Download references

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Authors and Affiliations

  1. Shubnikov Institute of Crystallography, Russian Academy of Sciences, Leninskii pr. 59, Moscow, 119333, Russia

    I. P. Makarova, T. S. Chernaya, V. V. Grebenev, V. V. Dolbinina, I. A. Verin & A. A. Simonov

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  1. I. P. Makarova
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  2. T. S. Chernaya
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  3. V. V. Grebenev
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  4. V. V. Dolbinina
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  5. I. A. Verin
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  6. A. A. Simonov
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Correspondence to I. P. Makarova.

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Dedicated to the memory of N.V. Belov

Original Russian Text © I.P. Makarova, T.S. Chernaya, V.V. Grebenev, V.V. Dolbinina, I.A. Verin, A.A. Simonov, 2011, published in Kristallografiya, 2011, Vol. 56, No. 6, pp. 1062–1072.

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Makarova, I.P., Chernaya, T.S., Grebenev, V.V. et al. Investigation of the structure and properties of K9H7(SO4)8 · H2O single crystals. Crystallogr. Rep. 56, 994–1003 (2011). https://doi.org/10.1134/S1063774511060174

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  • DOI: https://doi.org/10.1134/S1063774511060174

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