23Na Nuclear Magnetic Resonance Study of the Structure and Dynamic of Natrolite-Reference-Cited by-同舟云学术

23Na Nuclear Magnetic Resonance Study of the Structure and Dynamic of Natrolite

Published:2015-03-28 Issue:4 Volume:70 Page:295-300
ISSN:1865-7109
Container-title:Zeitschrift für Naturforschung A
language:en
Short-container-title:

Author:

Paczwa Mateusz¹,Sapiga Aleksej A.²,Olszewski Marcin¹,Sergeev Nikolaj¹,Sapiga Aleksej V.²

Affiliation:

1. Institute of Physics, University of Szczecin, Poland

2. Faculty of Physics, Taurida National V. I. Vernadsky University, Simferopol, Crimea

Abstract

Abstract The temperature dependences of nuclear magnetic resonance (NMR) and magic angle spinning (MAS) NMR spectra of 23Na nuclei in natrolite (Na2Al2Si3O10·2H2O) have been studied. The temperature dependences of the spin-lattice relaxation times T1 in natrolite have also been studied. It has been shown that the spin-lattice relaxation of the 23Na 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 23Na nuclei only at low temperature (<270 K).

Publisher

Walter de Gruyter GmbH

Subject

Physical and Theoretical Chemistry,General Physics and Astronomy,Mathematical Physics

Link

https://www.degruyter.com/document/doi/10.1515/zna-2014-0371/pdf

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