%0 Journal Article
%A Bell, Anthony
%T Rietveld refinement of the low temperature crystal structures of Cs<sub>2</sub>XSi<sub>5</sub>O<sub>12</sub> (X=Cu, Cd and Zn)
%J European journal of chemistry
%V 12
%N 1
%@ 2153-2257
%C Tucker, Ga.
%I Univ.
%M PUBDB-2021-01769
%P 60 - 63
%D 2021
%X The synthetic leucite silicate framework mineral analogues Cs<sub>2</sub>XSi<sub>5</sub>O<sub>12</sub> (X = Cu, Cd, Zn) were prepared by high-temperature solid-state synthesis. The results of Rietveld refinement, using 18 keV synchrotron X-ray powder diffraction data collected at low temperatures (8K X = Cu, Zn; 10K X = Cd) show that the title compounds crystallize in the space group Pbca and are isostructural with the ambient temperature structures of these analogues. The structures consist of tetrahedrally coordinated SiO<sub>4</sub> and XO<sub>4</sub> sharing corners to form a partially substituted silicate framework. Extraframework Cs cations sit in channels in the framework. All atoms occupy the 8c general position for this space group. In these refined structures, silicon and X atoms are ordered onto separate tetrahedrally coordinated sites (T-sites).
%F PUB:(DE-HGF)16
%9 Journal Article
%R 10.5155/eurjchem.12.1.60-63.2089
%U https://bib-pubdb1.desy.de/record/456944