Sr2SnO4 is (La,Ba)CuO4-like structured and crystallizes in the tetragonal P4_2/ncm space group. Sr(1) is bonded in a 9-coordinate geometry to two equivalent O(2), two equivalent O(3), and five equivalent O(1) atoms. Sn(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form corner-sharing SnO6 octahedra. The corner-sharing octahedral tilt angles range from 0-17°. There are three inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to five equivalent Sr(1) and one Sn(1) atom. In the second O site, O(2) is bonded to four equivalent Sr(1) and two equivalent Sn(1) atoms to form a mixture of distorted corner and edge-sharing OSr4Sn2 octahedra. The corner-sharing octahedra are not tilted. In the third O site, O(3) is bonded in a 6-coordinate geometry to four equivalent Sr(1) and two equivalent Sn(1) atoms.
Sr2SnO4 is (La,Ba)CuO4-like structured and crystallizes in the tetragonal P4_2/ncm space group. Sr(1) is bonded in a 9-coordinate geometry to two equivalent O(2), two equivalent O(3), and five equivalent O(1) atoms. Both Sr(1)-O(2) bond lengths are 2.75 Å. There is one shorter (2.63 Å) and one longer (2.90 Å) Sr(1)-O(3) bond length. There are a spread of Sr(1)-O(1) bond distances ranging from 2.42-3.17 Å. Sn(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form corner-sharing SnO6 octahedra. The corner-sharing octahedral tilt angles range from 0-17°. Both Sn(1)-O(1) bond lengths are 2.06 Å. Both Sn(1)-O(2) bond lengths are 2.04 Å. Both Sn(1)-O(3) bond lengths are 2.07 Å. There are three inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to five equivalent Sr(1) and one Sn(1) atom. In the second O site, O(2) is bonded to four equivalent Sr(1) and two equivalent Sn(1) atoms to form a mixture of distorted corner and edge-sharing OSr4Sn2 octahedra. The corner-sharing octahedra are not tilted. In the third O site, O(3) is bonded in a 6-coordinate geometry to four equivalent Sr(1) and two equivalent Sn(1) atoms.