Sr2MgFeO4 crystallizes in the tetragonal I-4m2 space group. Sr(1) is bonded in a 6-coordinate geometry to two equivalent O(2) and four equivalent O(1) atoms. Mg(1) is bonded to four equivalent O(1) atoms to form corner-sharing MgO4 tetrahedra. Fe(1) is bonded to four equivalent O(2) atoms to form corner-sharing FeO4 tetrahedra. There are two inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 120 degrees geometry to four equivalent Sr(1) and two equivalent Mg(1) atoms. In the second O site, O(2) is bonded to two equivalent Sr(1) and two equivalent Fe(1) atoms to form corner-sharing OSr2Fe2 tetrahedra.
Sr2MgFeO4 crystallizes in the tetragonal I-4m2 space group. Sr(1) is bonded in a 6-coordinate geometry to two equivalent O(2) and four equivalent O(1) atoms. Both Sr(1)-O(2) bond lengths are 2.33 Å. All Sr(1)-O(1) bond lengths are 2.78 Å. Mg(1) is bonded to four equivalent O(1) atoms to form corner-sharing MgO4 tetrahedra. All Mg(1)-O(1) bond lengths are 2.07 Å. Fe(1) is bonded to four equivalent O(2) atoms to form corner-sharing FeO4 tetrahedra. All Fe(1)-O(2) bond lengths are 1.98 Å. There are two inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 120 degrees geometry to four equivalent Sr(1) and two equivalent Mg(1) atoms. In the second O site, O(2) is bonded to two equivalent Sr(1) and two equivalent Fe(1) atoms to form corner-sharing OSr2Fe2 tetrahedra.