Crystal Structures of a Cubic Tin(II) Germanate, α-Sn₆GeO₈, and a Tetragonal Tin(II) Silicate, γ-Sn₆SiO₈.

ABSTRACT: A cubic tin(II) germanate, α-Sn₆GeO₈ (space group F4̅3m, a = 10.52521(2) Å, and Z = 4), has been synthesized by both regular hydrothermal and microwave-assisted hydrothermal methods, and the crystal structure of this material has been solved by Rietveld refinement of synchrotron powder X-ray diffraction (PXRD) data. The crystal structure is analogous to α-Sn₆SiO₈ and is therefore related to the zinc blende structure comprising a face-centered cubic array of [Sn₆O₈]^4- anionic clusters with Ge⁴⁺ cations occupying half of the tetrahedral holes. Variable-temperature PXRD has revealed that tin(II) germanate has high thermal stability: remaining stable at 950 K and mostly decomposi

SUBMITTER: Parsons DS 

PROVIDER: S-EPMC9490749 | biostudies-literature | 2022 Sep

REPOSITORIES: biostudies-literature