Ba2MgGdMoO6 crystallizes in the triclinic P-1 space group. Ba(1) is bonded in a 10-coordinate geometry to one Mg(1), three equivalent O(1), three equivalent O(2), and three equivalent O(3) atoms. Mg(1) is bonded in a square co-planar geometry to two equivalent Ba(1), two equivalent O(1), and two equivalent O(3) atoms. Gd(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form GdO6 octahedra that share corners with six equivalent Mo(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 8-14°. Mo(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form MoO6 octahedra that share corners with six equivalent Gd(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 8-14°. There are three inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to three equivalent Ba(1), one Mg(1), one Gd(1), and one Mo(1) atom. In the second O site, O(2) is bonded in a distorted rectangular see-saw-like geometry to three equivalent Ba(1), one Gd(1), and one Mo(1) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to three equivalent Ba(1), one Mg(1), one Gd(1), and one Mo(1) atom.
Ba2MgGdMoO6 crystallizes in the triclinic P-1 space group. Ba(1) is bonded in a 10-coordinate geometry to one Mg(1), three equivalent O(1), three equivalent O(2), and three equivalent O(3) atoms. The Ba(1)-Mg(1) bond length is 2.97 Å. There are a spread of Ba(1)-O(1) bond distances ranging from 2.85-3.21 Å. There are a spread of Ba(1)-O(2) bond distances ranging from 2.61-3.45 Å. There are a spread of Ba(1)-O(3) bond distances ranging from 2.86-3.33 Å. Mg(1) is bonded in a square co-planar geometry to two equivalent Ba(1), two equivalent O(1), and two equivalent O(3) atoms. Both Mg(1)-O(1) bond lengths are 2.02 Å. Both Mg(1)-O(3) bond lengths are 2.05 Å. Gd(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form GdO6 octahedra that share corners with six equivalent Mo(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 8-14°. Both Gd(1)-O(1) bond lengths are 2.25 Å. Both Gd(1)-O(2) bond lengths are 2.51 Å. Both Gd(1)-O(3) bond lengths are 2.23 Å. Mo(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form MoO6 octahedra that share corners with six equivalent Gd(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 8-14°. Both Mo(1)-O(1) bond lengths are 2.15 Å. Both Mo(1)-O(2) bond lengths are 2.28 Å. Both Mo(1)-O(3) bond lengths are 2.14 Å. There are three inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to three equivalent Ba(1), one Mg(1), one Gd(1), and one Mo(1) atom. In the second O site, O(2) is bonded in a distorted rectangular see-saw-like geometry to three equivalent Ba(1), one Gd(1), and one Mo(1) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to three equivalent Ba(1), one Mg(1), one Gd(1), and one Mo(1) atom.