Materials Data on Sr2Ti2Sb2OF2 by Materials Project
Sr2Ti2Sb2OF2 crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Sr2+ is bonded in a 4-coordinate geometry to four equivalent Sb3- and four equivalent F1- atoms. All Sr–Sb bond lengths are 3.46 Å. All Sr–F bond lengths are 2.50 Å. Ti3+ is bonded in a linear geometry to four equivalent Sb3- and two equivalent O2- atoms. All Ti–Sb bond lengths are 2.90 Å. Both Ti–O bond lengths are 2.06 Å. Sb3- is bonded in a 8-coordinate geometry to four equivalent Sr2+ and four equivalent Ti3+ atoms. O2- is bonded in a square co-planar geometry to four equivalent Ti3+ atoms. F1- is bonded to four equivalent Sr2+ atoms to form a mixture of edge and corner-sharing FSr4 tetrahedra.
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