Effect of the hydration number on the structure, thermal properties and ionic mobility in fluoridezirconates crystallohydrates with zinc cations. N.A.DIDENKO, E.I. VOIT, K.A. SAYANKINA, A.B. SLOBODYUK, A.V. GERASIMENKO

Abstract

Effect of the hydration number on the structure, thermal properties and ionic mobility in fluoridezirconates crystallohydrates with zinc cations. N.A. DIDENKO, E.I. VOIT, K.A. SAYANKINA, A.B. SLOBODYUK, A.V. GERASIMENKO (Institute of Chemistry, FEB RAS, Vladivostok).

The paper considers the effect of the hydration number on the structure, thermal properties, vibrational and NMR spectra of a number of crystal hydrates of fluoridezirconates Zn₂ZrF₈ ∙ 12H₂O – ZnZrF₆ ∙ 6H₂O – ZnZr₂F₁₀ ∙ 6H₂O with different stoichiometric ratio F/Zr with the same outer-sphere cation and the structural role of the H₂O molecule. The structural transformations during a compound dehydration of the above compounds were followed and their relation to the compound stoichiometry was established. The vibrational spectra of the discussed crystalline hydrates of zinc fluoride zirconates were obtained, analyzed, compared and related to the features of their structure. The NMR data of the discussed compounds are expanded, systematized and summarized.