Gd2SrCo2O7 crystallizes in the tetragonal P4_2/mnm space group. Sr(1) is bonded in a 12-coordinate geometry to two equivalent O(1), two equivalent O(4), four equivalent O(3), and four equivalent O(5) atoms. Gd(1) is bonded in a 7-coordinate geometry to one O(1), one O(4), two equivalent O(3), and three equivalent O(2) atoms. Co(1) is bonded to one O(1), one O(2), one O(4), one O(5), and two equivalent O(3) atoms to form corner-sharing CoO6 octahedra. The corner-sharing octahedral tilt angles range from 7-28°. There are five inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to two equivalent Sr(1), two equivalent Gd(1), and two equivalent Co(1) atoms. In the second O site, O(2) is bonded in a distorted rectangular see-saw-like geometry to three equivalent Gd(1) and one Co(1) atom. In the third O site, O(3) is bonded in a 6-coordinate geometry to two equivalent Sr(1), two equivalent Gd(1), and two equivalent Co(1) atoms. In the fourth O site, O(4) is bonded to two equivalent Sr(1), two equivalent Gd(1), and two equivalent Co(1) atoms to form edge-sharing OSr2Gd2Co2 octahedra. In the fifth O site, O(5) is bonded in a 6-coordinate geometry to four equivalent Sr(1) and two equivalent Co(1) atoms.
Gd2SrCo2O7 crystallizes in the tetragonal P4_2/mnm space group. Sr(1) is bonded in a 12-coordinate geometry to two equivalent O(1), two equivalent O(4), four equivalent O(3), and four equivalent O(5) atoms. Both Sr(1)-O(1) bond lengths are 3.13 Å. Both Sr(1)-O(4) bond lengths are 2.62 Å. All Sr(1)-O(3) bond lengths are 2.85 Å. There are two shorter (2.58 Å) and two longer (2.90 Å) Sr(1)-O(5) bond lengths. Gd(1) is bonded in a 7-coordinate geometry to one O(1), one O(4), two equivalent O(3), and three equivalent O(2) atoms. The Gd(1)-O(1) bond length is 2.38 Å. The Gd(1)-O(4) bond length is 2.50 Å. Both Gd(1)-O(3) bond lengths are 2.44 Å. There is one shorter (2.25 Å) and two longer (2.42 Å) Gd(1)-O(2) bond lengths. Co(1) is bonded to one O(1), one O(2), one O(4), one O(5), and two equivalent O(3) atoms to form corner-sharing CoO6 octahedra. The corner-sharing octahedral tilt angles range from 7-28°. The Co(1)-O(1) bond length is 1.95 Å. The Co(1)-O(2) bond length is 2.18 Å. The Co(1)-O(4) bond length is 1.97 Å. The Co(1)-O(5) bond length is 1.97 Å. Both Co(1)-O(3) bond lengths are 1.94 Å. There are five inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to two equivalent Sr(1), two equivalent Gd(1), and two equivalent Co(1) atoms. In the second O site, O(2) is bonded in a distorted rectangular see-saw-like geometry to three equivalent Gd(1) and one Co(1) atom. In the third O site, O(3) is bonded in a 6-coordinate geometry to two equivalent Sr(1), two equivalent Gd(1), and two equivalent Co(1) atoms. In the fourth O site, O(4) is bonded to two equivalent Sr(1), two equivalent Gd(1), and two equivalent Co(1) atoms to form edge-sharing OSr2Gd2Co2 octahedra. In the fifth O site, O(5) is bonded in a 6-coordinate geometry to four equivalent Sr(1) and two equivalent Co(1) atoms.