caa a22 4500 605546053 CHVBK 20210128100938.0 cr unu---uuuuu 210128e20150501xx s 000 0 eng 10.1007/s00723-015-0648-5 doi (NATIONALLICENCE)springer-10.1007/s00723-015-0648-5 27Al NMR Study of the Structure and Dynamics of Natrolite [Elektronische Daten] [M. Paczwa, A. Sapiga, M. Olszewski, N. Sergeev, A. Sapiga] The temperature dependences of nuclear magnetic resonance and magic angle spinning nuclear magnetic resonance spectra of 27Al nuclei in natrolite (Na2Al2Si3O10· 2H2O) have been studied. The influence of water molecules and sodium ions mobility on the shape of the 27Al NMR spectrum and framework dynamics have been discussed The temperature dependences of the spin-lattice relaxation times T1 of 27Al nuclei in natrolite have also been studied. It has been shown that the spin-lattice relaxation of the 27Al is governed by the electric quadrupole interaction with the crystal electric field gradients modulated by translational motion of H2O molecules in the natrolite pores. The dipolar interactions with paramagnetic impurities become significant as a relaxation mechanism of the 27Al nuclei only at low temperatures (<270K). Springer-Verlag Wien, 2015 Paczwa M. Institute of Physics, University of Szczecin, 70-451, Szczecin, Poland aut Sapiga A. Faculty of Physics, Taurida National V.I.Vernadsky University, Simferopol, Crimea aut Olszewski M. Institute of Physics, University of Szczecin, 70-451, Szczecin, Poland aut Sergeev N. Institute of Physics, University of Szczecin, 70-451, Szczecin, Poland aut Applied Magnetic Resonance Springer Vienna 46/5(2015-05-01), 583-592 0937-9347 46:5<583 2015 46 723 https://doi.org/10.1007/s00723-015-0648-5 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00723-015-0648-5 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Paczwa M. Institute of Physics, University of Szczecin, 70-451, Szczecin, Poland aut NATIONALLICENCE 700 1- Sapiga A. Faculty of Physics, Taurida National V.I.Vernadsky University, Simferopol, Crimea aut NATIONALLICENCE 700 1- Olszewski M. Institute of Physics, University of Szczecin, 70-451, Szczecin, Poland aut NATIONALLICENCE 700 1- Sergeev N. Institute of Physics, University of Szczecin, 70-451, Szczecin, Poland aut NATIONALLICENCE 773 0- Applied Magnetic Resonance Springer Vienna 46/5(2015-05-01), 583-592 0937-9347 46:5<583 2015 46 723