Journal Article

PUBDB-2021-01769

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Rietveld refinement of the low temperature crystal structures of Cs$_{2}$XSi$_{5}$O$_{12}$ (X=Cu, Cd and Zn)

Bell, A. (Corresponding author)Extern*

2021
Univ. Tucker, Ga.

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Please use a persistent id in citations: doi:10.5155/eurjchem.12.1.60-63.2089  doi:10.3204/PUBDB-2021-01769

Abstract: The synthetic leucite silicate framework mineral analogues Cs$_{2}$XSi$_{5}$O$_{12}$ (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$_{4}$ and XO$_{4}$ 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).

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Contributing Institute(s):

1. DOOR-User (DOOR ; HAS-User)

Research Program(s):

1. 899 - ohne Topic (POF4-899) (POF4-899)

Experiment(s):

1. DORIS Beamline B2 (DORIS III)

Appears in the scientific report 2021

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Database coverage:
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