Mg(MoO3)4 crystallizes in the triclinic P1 space group. Mg(1) is bonded in a 7-coordinate geometry to one O(10), one O(12), one O(2), one O(4), one O(5), one O(7), and one O(8) atom. There are four inequivalent Mo sites. In the first Mo site, Mo(1) is bonded to one O(10), one O(11), one O(3), one O(4), one O(7), and one O(8) atom to form corner-sharing MoO6 octahedra. The corner-sharing octahedral tilt angles range from 22-40°. In the second Mo site, Mo(2) is bonded to one O(12), one O(3), one O(4), one O(7), one O(8), and one O(9) atom to form corner-sharing MoO6 octahedra. The corner-sharing octahedral tilt angles range from 22-40°. In the third Mo site, Mo(3) is bonded to one O(1), one O(12), one O(2), one O(5), one O(6), and one O(9) atom to form distorted corner-sharing MoO6 octahedra. The corner-sharing octahedral tilt angles range from 27-40°. In the fourth Mo site, Mo(4) is bonded to one O(1), one O(10), one O(11), one O(2), one O(5), and one O(6) atom to form distorted corner-sharing MoO6 octahedra. The corner-sharing octahedral tilt angles range from 27-40°. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 150 degrees geometry to one Mo(3) and one Mo(4) atom. In the second O site, O(2) is bonded in a distorted T-shaped geometry to one Mg(1), one Mo(3), and one Mo(4) atom. In the third O site, O(3) is bonded in a bent 150 degrees geometry to one Mo(1) and one Mo(2) atom. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to one Mg(1), one Mo(1), and one Mo(2) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one Mg(1), one Mo(3), and one Mo(4) atom. In the sixth O site, O(6) is bonded in a bent 150 degrees geometry to one Mo(3) and one Mo(4) atom. In the seventh O site, O(7) is bonded in a T-shaped geometry to one Mg(1), one Mo(1), and one Mo(2) atom. In the eighth O site, O(8) is bonded in a 3-coordinate geometry to one Mg(1), one Mo(1), and one Mo(2) atom. In the ninth O site, O(9) is bonded in a bent 150 degrees geometry to one Mo(2) and one Mo(3) atom. In the tenth O site, O(10) is bonded in a distorted T-shaped geometry to one Mg(1), one Mo(1), and one Mo(4) atom. In the eleventh O site, O(11) is bonded in a bent 150 degrees geometry to one Mo(1) and one Mo(4) atom. In the twelfth O site, O(12) is bonded in a distorted trigonal non-coplanar geometry to one Mg(1), one Mo(2), and one Mo(3) atom.
Mg(MoO3)4 crystallizes in the triclinic P1 space group. Mg(1) is bonded in a 7-coordinate geometry to one O(10), one O(12), one O(2), one O(4), one O(5), one O(7), and one O(8) atom. The Mg(1)-O(10) bond length is 2.14 Å. The Mg(1)-O(12) bond length is 2.10 Å. The Mg(1)-O(2) bond length is 2.36 Å. The Mg(1)-O(4) bond length is 2.16 Å. The Mg(1)-O(5) bond length is 2.18 Å. The Mg(1)-O(7) bond length is 2.23 Å. The Mg(1)-O(8) bond length is 2.55 Å. There are four inequivalent Mo sites. In the first Mo site, Mo(1) is bonded to one O(10), one O(11), one O(3), one O(4), one O(7), and one O(8) atom to form corner-sharing MoO6 octahedra. The corner-sharing octahedral tilt angles range from 22-40°. The Mo(1)-O(10) bond length is 2.09 Å. The Mo(1)-O(11) bond length is 2.02 Å. The Mo(1)-O(3) bond length is 1.87 Å. The Mo(1)-O(4) bond length is 2.01 Å. The Mo(1)-O(7) bond length is 1.90 Å. The Mo(1)-O(8) bond length is 2.12 Å. In the second Mo site, Mo(2) is bonded to one O(12), one O(3), one O(4), one O(7), one O(8), and one O(9) atom to form corner-sharing MoO6 octahedra. The corner-sharing octahedral tilt angles range from 22-40°. The Mo(2)-O(12) bond length is 2.09 Å. The Mo(2)-O(3) bond length is 1.98 Å. The Mo(2)-O(4) bond length is 1.99 Å. The Mo(2)-O(7) bond length is 2.08 Å. The Mo(2)-O(8) bond length is 1.83 Å. The Mo(2)-O(9) bond length is 1.99 Å. In the third Mo site, Mo(3) is bonded to one O(1), one O(12), one O(2), one O(5), one O(6), and one O(9) atom to form distorted corner-sharing MoO6 octahedra. The corner-sharing octahedral tilt angles range from 27-40°. The Mo(3)-O(1) bond length is 1.78 Å. The Mo(3)-O(12) bond length is 1.97 Å. The Mo(3)-O(2) bond length is 1.81 Å. The Mo(3)-O(5) bond length is 2.25 Å. The Mo(3)-O(6) bond length is 2.14 Å. The Mo(3)-O(9) bond length is 1.85 Å. In the fourth Mo site, Mo(4) is bonded to one O(1), one O(10), one O(11), one O(2), one O(5), and one O(6) atom to form distorted corner-sharing MoO6 octahedra. The corner-sharing octahedral tilt angles range from 27-40°. The Mo(4)-O(1) bond length is 2.20 Å. The Mo(4)-O(10) bond length is 1.93 Å. The Mo(4)-O(11) bond length is 1.86 Å. The Mo(4)-O(2) bond length is 2.22 Å. The Mo(4)-O(5) bond length is 1.83 Å. The Mo(4)-O(6) bond length is 1.78 Å. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 150 degrees geometry to one Mo(3) and one Mo(4) atom. In the second O site, O(2) is bonded in a distorted T-shaped geometry to one Mg(1), one Mo(3), and one Mo(4) atom. In the third O site, O(3) is bonded in a bent 150 degrees geometry to one Mo(1) and one Mo(2) atom. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to one Mg(1), one Mo(1), and one Mo(2) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one Mg(1), one Mo(3), and one Mo(4) atom. In the sixth O site, O(6) is bonded in a bent 150 degrees geometry to one Mo(3) and one Mo(4) atom. In the seventh O site, O(7) is bonded in a T-shaped geometry to one Mg(1), one Mo(1), and one Mo(2) atom. In the eighth O site, O(8) is bonded in a 3-coordinate geometry to one Mg(1), one Mo(1), and one Mo(2) atom. In the ninth O site, O(9) is bonded in a bent 150 degrees geometry to one Mo(2) and one Mo(3) atom. In the tenth O site, O(10) is bonded in a distorted T-shaped geometry to one Mg(1), one Mo(1), and one Mo(4) atom. In the eleventh O site, O(11) is bonded in a bent 150 degrees geometry to one Mo(1) and one Mo(4) atom. In the twelfth O site, O(12) is bonded in a distorted trigonal non-coplanar geometry to one Mg(1), one Mo(2), and one Mo(3) atom.