Sr2Fe2S2OF2 crystallizes in the tetragonal I4/mmm space group. Sr(1) is bonded in a 4-coordinate geometry to four equivalent S(1) and four equivalent F(1) atoms. Fe(1) is bonded in a distorted linear geometry to four equivalent S(1) and two equivalent O(1) atoms. S(1) is bonded in a 8-coordinate geometry to four equivalent Sr(1) and four equivalent Fe(1) atoms. O(1) is bonded in a distorted square co-planar geometry to four equivalent Fe(1) atoms. F(1) is bonded to four equivalent Sr(1) atoms to form a mixture of edge and corner-sharing FSr4 tetrahedra.
Sr2Fe2S2OF2 crystallizes in the tetragonal I4/mmm space group. Sr(1) is bonded in a 4-coordinate geometry to four equivalent S(1) and four equivalent F(1) atoms. All Sr(1)-S(1) bond lengths are 3.22 Å. All Sr(1)-F(1) bond lengths are 2.50 Å. Fe(1) is bonded in a distorted linear geometry to four equivalent S(1) and two equivalent O(1) atoms. All Fe(1)-S(1) bond lengths are 2.68 Å. Both Fe(1)-O(1) bond lengths are 2.05 Å. S(1) is bonded in a 8-coordinate geometry to four equivalent Sr(1) and four equivalent Fe(1) atoms. O(1) is bonded in a distorted square co-planar geometry to four equivalent Fe(1) atoms. F(1) is bonded to four equivalent Sr(1) atoms to form a mixture of edge and corner-sharing FSr4 tetrahedra.