Photograph of Sn 3 TeO 8 single crystals grown by chemical vapor transport reactions.

Photograph of Sn 3 TeO 8 single crystals grown by chemical vapor transport reactions.

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Tin(IV) trioxidotellurate(IV), SnTe 3 O 8 , is a member of the isotypic M IV Te IV 3 O 8 ( M = Ti, Zr, Hf, Sn) series crystallizing with eight formula units per unit cell in space group Ia \overline{3}. In comparison with the previous crystal structure model of SnTe 3 O 8 based on powder X-ray diffraction data [Meunier & Galy (1971). Acta Cryst. B...

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... a silica tube to which 50 mg of TeCl 4 were added as the transport agent. The silica ampoule was then evacuated and torchsealed, placed in a two-zone furnace using a temperature gradient 973 K (source) ! 873 K (sink) for three days. Cubic, canary-yellow crystals had formed in the millimetre size range in the colder sink region as the only product (Fig. 3). Powder X-ray diffraction of the remaining material in the source region revealed SnTe 3 O 8 as the main phase and SnO 2 as a side phase. For the single-crystal diffraction study, a fragment was broken from a larger ...