Figure 7
Calculated low-symmetry anion-ordered spinel structure with space group [F{\overline 4}3m] and structural formula A4aB16e4X16e4X'16e4. Atom presentation of the ordered spinel structure (a), tetrahedra in the ordered spinel structure (b), B16e metallic tetrahedra (c). A substance with composition Re4As6S3 has a similar structure. In this structure there are Re4 clusters (Besnard et al., 2003BB3).  [article HTML]

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