TY  - JOUR
AU  - Bell, Anthony
TI  - 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)
JO  - European journal of chemistry
VL  - 12
IS  - 1
SN  - 2153-2257
CY  - Tucker, Ga.
PB  - Univ.
M1  - PUBDB-2021-01769
SP  - 60 - 63
PY  - 2021
AB  - 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).
LB  - PUB:(DE-HGF)16
DO  - DOI:10.5155/eurjchem.12.1.60-63.2089
UR  - https://bib-pubdb1.desy.de/record/456944
ER  -