Sr2Ti2Bi2OF2 crystallizes in the tetragonal I4/mmm space group. Sr(1) is bonded in a 4-coordinate geometry to four equivalent Bi(1) and four equivalent F(1) atoms. Ti(1) is bonded in a linear geometry to four equivalent Bi(1) and two equivalent O(1) atoms. Bi(1) is bonded in a 8-coordinate geometry to four equivalent Sr(1) and four equivalent Ti(1) atoms. O(1) is bonded in a square co-planar geometry to four equivalent Ti(1) atoms. F(1) is bonded to four equivalent Sr(1) atoms to form a mixture of edge and corner-sharing FSr4 tetrahedra.
Sr2Ti2Bi2OF2 crystallizes in the tetragonal I4/mmm space group. Sr(1) is bonded in a 4-coordinate geometry to four equivalent Bi(1) and four equivalent F(1) atoms. All Sr(1)-Bi(1) bond lengths are 3.51 Å. All Sr(1)-F(1) bond lengths are 2.51 Å. Ti(1) is bonded in a linear geometry to four equivalent Bi(1) and two equivalent O(1) atoms. All Ti(1)-Bi(1) bond lengths are 2.98 Å. Both Ti(1)-O(1) bond lengths are 2.06 Å. Bi(1) is bonded in a 8-coordinate geometry to four equivalent Sr(1) and four equivalent Ti(1) atoms. O(1) is bonded in a square co-planar geometry to four equivalent Ti(1) atoms. F(1) is bonded to four equivalent Sr(1) atoms to form a mixture of edge and corner-sharing FSr4 tetrahedra.