Email this article Crystal structure of synthetic voltaite (K0.90(NH4)0.10)2(Fe3.1902+Fe1.1243+Mg1.686)(Fe0.9383+Mg0.062)2··(Al0.98Fe0.023+)(SO4)12·18.9H2O
- Authors: Sabirov V.K.1
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Affiliations:
- Ayezov South Kazakhstan State University
- Issue: Vol 58, No 1 (2017)
- Pages: 183-187
- Section: Brief Communications
- URL: https://journal-vniispk.ru/0022-4766/article/view/161111
- DOI: https://doi.org/10.1134/S0022476617010255
- ID: 161111
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Abstract
Voltaite of the composition [(K0.90(NH4)0.10]2(Fe3.1902+Fe1.1243+Mg1.686)(Fe0.9383+Mg0.062)2(Al0.98Fe0.023+)·(SO4)12·18.9H2O* is obtained by treating a polymetallic sample with sulfuric acid. The crystal structure of the substance is formed of (Fe3+,Mg)O6 and (Fe2+,Fe3+,Mg)O4(H2O)2 octahedra and a (K+, NH4+)O12 12-vertex polyhedron arranged in a three-dimensional framework due to the bridging function of the SO42− ion. In the framework voids, [(Fe3+,Al)(H2O)6]3+ cations with aqua ligands are disordered over several positions.
About the authors
V. Kh. Sabirov
Ayezov South Kazakhstan State University
Author for correspondence.
Email: v_sabirov@mail.ru
Kazakhstan, Shymkent
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