Abstract
The single-crystal structures of four biomimetic weddellites CaC2O4 · (2 + x)H2O with different contents of zeolitic water (x = 0.10–0.24 formula units) produced by the microscopic fungus Aspergillus niger were refined from X-ray diffraction data (R = 0.029–0.038). The effect of zeolitic water content on the structural stability of weddellite was analyzed. The parameter a was shown to increase with increasing x due to the increase in the distance between water molecules along this direction. The water content and structural parameters of the synthesized weddellites are similar to those of weddellites from biofilms and kidney stones.
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Original Russian Text © A.V. Rusakov, O.V. Frank-Kamenetskaya, V.V. Gurzhiy, M.S. Zelenskaya, A.R. Izatulina, K.V. Sazanova, 2014, published in Kristallografiya, 2014, Vol. 59, No. 3, pp. 405–411.
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Rusakov, A.V., Frank-Kamenetskaya, O.V., Gurzhiy, V.V. et al. Refinement of the crystal structures of biomimetic weddellites produced by microscopic fungus Aspergillus niger . Crystallogr. Rep. 59, 362–368 (2014). https://doi.org/10.1134/S1063774514030146
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DOI: https://doi.org/10.1134/S1063774514030146