Materials Data on S2O5F2 by Materials Project
FS(O2)O(O2)SF crystallizes in the tetragonal P-42_1c space group. The structure is zero-dimensional and consists of four FS(O2)O(O2)SF clusters. S6+ is bonded to three O2- and one F1- atom to form corner-sharing SO3F tetrahedra. There is two shorter (1.42 Å) and one longer (1.65 Å) S–O bond length. The S–F bond length is 1.57 Å. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded in a single-bond geometry to one S6+ atom. In the second O2- site, O2- is bonded in a single-bond geometry to one S6+ atom. In the third O2- site, O2- is bonded in a bent 120 degrees geometry to two equivalent S6+ atoms. F1- is bonded in a single-bond geometry to one S6+ atom.
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