Sr2Ti2As2OF2 crystallizes in the tetragonal I4/mmm space group. Sr(1) is bonded in a 4-coordinate geometry to four equivalent As(1) and four equivalent F(1) atoms. Ti(1) is bonded in a distorted linear geometry to four equivalent As(1) and two equivalent O(1) atoms. As(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 corner and edge-sharing FSr4 tetrahedra.
Sr2Ti2As2OF2 crystallizes in the tetragonal I4/mmm space group. Sr(1) is bonded in a 4-coordinate geometry to four equivalent As(1) and four equivalent F(1) atoms. All Sr(1)-As(1) bond lengths are 3.32 Å. All Sr(1)-F(1) bond lengths are 2.48 Å. Ti(1) is bonded in a distorted linear geometry to four equivalent As(1) and two equivalent O(1) atoms. All Ti(1)-As(1) bond lengths are 2.70 Å. Both Ti(1)-O(1) bond lengths are 2.03 Å. As(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 corner and edge-sharing FSr4 tetrahedra.