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Dynamic of water molecules in natrolite

Treść / Zawartość
Identyfikatory
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
Molecular mobility of water molecules has been investigated in the natural zeolite natrolite (Na2Al2Si3O10 ·2H2O) by 1H NMR. Spin-lattice relaxation times in the laboratory and rotating frames (T1 and T1-) have been measured as a function of temperature for a polycrystalline sample. It has been shown that the spin-lattice relaxations times of 1H are governed by the translation motions of water molecules in the natrolite pores. From experimental T1 data it follows that at T > 286 K the diffusion of water molecules along channels parallel to the c axis is observed. From experimental T1 data it follows that at T > 250 K the diffusion of water molecules in transversal channels of natrolite is observed also. At low temperature (T < 250 K) the dipolar interaction with paramagnetic impurities (presumably with Fe3+ ions) become significant as a relaxation mechanism of 1H nuclei.
Słowa kluczowe
Rocznik
Strony
15--20
Opis fizyczny
Bibliogr. 20 poz., rys., tab.
Twórcy
autor
  • Institute of Physics, Department of Mathematical and Physics, University of Szczecin Wielkopolska str.-15, 70-451 Szczecin, Poland
  • Institute of Physics, Department of Mathematical and Physics, University of Szczecin Wielkopolska str.-15, 70-451 Szczecin, Poland
autor
  • Institute of Physics, Department of Mathematical and Physics, University of Szczecin Wielkopolska str.-15, 70-451 Szczecin, Poland
autor
  • V.I.Vernadsky Crimean Federal University, 295007 Simferopol, Crimea
autor
  • V.I.Vernadsky Crimean Federal University, 295007 Simferopol, Crimea
Bibliografia
  • [1] G. Engelhardt and D. Michel, High-Resolution Solid-State NMR of Silicates and Zeolites. John Wiley&Sons, Chichester – York - Brisbane-Toronto-Singapore, 1987.
  • [2] W. M. Meier, Z. Kristallogr. 113 (1960) 430.
  • [3] B. H. Torrie, I. D. Brown, H. E. Petch, Can. J. Phys. 42, 229 (1964) 229.
  • [4] F. Pechar, W. Schafer, G. Will, Z. Kristallog. 164 (1983) 19.
  • [5] G. Artioli, J. V. Smith, A. Kvick, Acta. Cryst. 40 (1984) 1658.
  • [6] A. Abragam, The Principles of Nuclear Magnetism. Oxford, 1061.
  • [7] Ch. P. Slichter, Principles of Magnetic Resonance. Springer, Berlin, 2010.
  • [8] S. P. Gabuda, Doklady AN SSSR 146 (1962) 840.
  • [9] I. A. Belitskii, S. P. Gabuda, Chem. Erde. B27 (1968) 79.
  • [10] R. T. Thompson, R. R. Knispel, H. E. Petch, Can. J. Phys. 52 (1974) 2164.
  • [11] A. V. Sapiga, N. A. Sergeev, V. N. Shcherbakov, S. P. Gabuda, J. Struct. Chem. 27 (1986) 183.
  • [12] A. V. Sapiga, N. A.Sergeev, Mol. Phys. Rep.(Poland) 29 (2000) 60.
  • [13] A. V. Sapiga, N. A. Sergeev, Mol. Phys. Rep. (Poland) 34/2 (2001) 137.
  • [14] A. V. Sapiga, N. A.Sergeev, Cryst. Res. Technol. 8-10 (20
  • [15] A. V. Sapiga, The shape of NMR spectra and study of structure and molecular mobility in natrolite. Thesis, Tavrida National University, Simferopol, 2003.
  • [16] M. Olszewski, Research into the influence of complex thermal motion on the nuclear magnetic resonance signals of solids, Thesis, UAM, Pozna􀄔, 2009.
  • [17] V. M. Vinokurov, J. M. Gaite, G. R. Bulka, N. M. Khasanova, N. M. Nizamutdinov, A. A. Galeev, C. Rudowicz, J. Magn. Res., 155 (2002) 57-63.
  • [18] M. Paczwa, A.A. Sapiga, M. Olszewski,. N.A. Sergeev, A.V. Sapiga, Appl. Magn. Res., 46, (2015) 583.
  • [19] M. Paczwa, A.A. Sapiga, M. Olszewski,. N.A. Sergeev, A.V. Sapiga, Zeitschrift für Naturf., A. 70 (2015) 295.
  • [20] P. Bilski, M. Olszewski, N.A. Sergeev, J. W􀄅sicki, Solid State NMR, 15 (2004) 15.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-d1e064d2-f0ce-45df-8919-7ab079122b0a
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