Abstract
The crystal structure of Si5O[PO4]6 has been determined and refined by least-squares, using three-dimensional X-raydata fromWeissenberg photographs: space group R 3;a=7.869 andc=24.138 Å;Z=3; 418 independent reflections;R=6.0%.
The crystal structure consists of isolated [SiO6] octahedra and [Si2O7] groups which are linked by [PO4] tetrahedra forming a three-dimensional network. The average interatomic distances are: Si[6]−O=1.768, Si[4]−O=1.607 and P−O=1.52i Å. The compound is isotypic with Ge5O[PO4]6.
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Mayer, H. Die Kristallstruktur von Si5O[PO4]6 . Monatshefte für Chemie 105, 46–54 (1974). https://doi.org/10.1007/BF00911286
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DOI: https://doi.org/10.1007/BF00911286