Funct. Mater. 2014; 21 (2): 181-185.

NMR study of gallosilicate natrolite

A.A.Sapiga[1], M.Olszewski[2], M.Paczwa[2], A.V.Sapiga[1], N.A.Sergeev[1]

[1] Faculty of Physics, Taurida National V.Vernadsky University, 295007 Simferopol, Ukraine
[2] Institute of Physics, University of Szczecin, 15 Wielkopolska Str., 70-451 Szczecin, Poland


Solid-state 29Si, 27Al and 71Ga NMR MAS spectroscopy was used to study the natural mineral - natrolite (Na16Al16Si24O80⋅ 16H2O) and gallosilicate Na16Ga16Si24O80⋅16H2O (Ga-natrolite). It has been shown that these natrolites form have sufficiently well-ordered structure also and contain Si(MO4)3(SiO4) and Si(MO4)2(SiO4)2 (where M = Al or Ga) structural units mainly. Our 71Ga NMR MAS results indicate that in Ga-natrolite there are at least two different Ga cations with ratio (10:1).


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