Ba2Mg(WO4)2 crystallizes in the triclinic P1 space group. There are two inequivalent Ba sites. In the first Ba site, Ba(1) is bonded in a 8-coordinate geometry to one O(1), one O(2), one O(3), one O(4), one O(5), one O(6), one O(7), and one O(8) atom. In the second Ba site, Ba(2) is bonded in a 8-coordinate geometry to one O(1), one O(2), one O(3), one O(4), one O(5), one O(6), one O(7), and one O(8) atom. Mg(1) is bonded in a 4-coordinate geometry to one O(1), one O(3), one O(6), one O(7), and one O(8) atom. There are two inequivalent W sites. In the first W site, W(1) is bonded in a distorted tetrahedral geometry to one O(3), one O(4), one O(5), and one O(6) atom. In the second W site, W(2) is bonded in a distorted trigonal pyramidal geometry to one O(1), one O(2), one O(7), and one O(8) atom. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one Ba(1), one Ba(2), one Mg(1), and one W(2) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Ba(1), one Ba(2), and one W(2) atom. In the third O site, O(3) is bonded in a 4-coordinate geometry to one Ba(1), one Ba(2), one Mg(1), and one W(1) atom. In the fourth O site, O(4) is bonded in a distorted T-shaped geometry to one Ba(1), one Ba(2), and one W(1) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one Ba(1), one Ba(2), and one W(1) atom. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to one Ba(1), one Ba(2), one Mg(1), and one W(1) atom. In the seventh O site, O(7) is bonded in a 4-coordinate geometry to one Ba(1), one Ba(2), one Mg(1), and one W(2) atom. In the eighth O site, O(8) is bonded in a 4-coordinate geometry to one Ba(1), one Ba(2), one Mg(1), and one W(2) atom.
Ba2Mg(WO4)2 crystallizes in the triclinic P1 space group. There are two inequivalent Ba sites. In the first Ba site, Ba(1) is bonded in a 8-coordinate geometry to one O(1), one O(2), one O(3), one O(4), one O(5), one O(6), one O(7), and one O(8) atom. The Ba(1)-O(1) bond length is 3.00 Å. The Ba(1)-O(2) bond length is 2.65 Å. The Ba(1)-O(3) bond length is 3.18 Å. The Ba(1)-O(4) bond length is 2.76 Å. The Ba(1)-O(5) bond length is 2.74 Å. The Ba(1)-O(6) bond length is 2.79 Å. The Ba(1)-O(7) bond length is 2.82 Å. The Ba(1)-O(8) bond length is 2.76 Å. In the second Ba site, Ba(2) is bonded in a 8-coordinate geometry to one O(1), one O(2), one O(3), one O(4), one O(5), one O(6), one O(7), and one O(8) atom. The Ba(2)-O(1) bond length is 2.77 Å. The Ba(2)-O(2) bond length is 2.78 Å. The Ba(2)-O(3) bond length is 2.83 Å. The Ba(2)-O(4) bond length is 2.72 Å. The Ba(2)-O(5) bond length is 2.63 Å. The Ba(2)-O(6) bond length is 3.04 Å. The Ba(2)-O(7) bond length is 3.17 Å. The Ba(2)-O(8) bond length is 2.81 Å. Mg(1) is bonded in a 4-coordinate geometry to one O(1), one O(3), one O(6), one O(7), and one O(8) atom. The Mg(1)-O(1) bond length is 1.99 Å. The Mg(1)-O(3) bond length is 2.02 Å. The Mg(1)-O(6) bond length is 1.99 Å. The Mg(1)-O(7) bond length is 2.05 Å. The Mg(1)-O(8) bond length is 2.68 Å. There are two inequivalent W sites. In the first W site, W(1) is bonded in a distorted tetrahedral geometry to one O(3), one O(4), one O(5), and one O(6) atom. The W(1)-O(3) bond length is 1.90 Å. The W(1)-O(4) bond length is 1.87 Å. The W(1)-O(5) bond length is 1.85 Å. The W(1)-O(6) bond length is 1.94 Å. In the second W site, W(2) is bonded in a distorted trigonal pyramidal geometry to one O(1), one O(2), one O(7), and one O(8) atom. The W(2)-O(1) bond length is 1.94 Å. The W(2)-O(2) bond length is 1.85 Å. The W(2)-O(7) bond length is 1.89 Å. The W(2)-O(8) bond length is 1.88 Å. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one Ba(1), one Ba(2), one Mg(1), and one W(2) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Ba(1), one Ba(2), and one W(2) atom. In the third O site, O(3) is bonded in a 4-coordinate geometry to one Ba(1), one Ba(2), one Mg(1), and one W(1) atom. In the fourth O site, O(4) is bonded in a distorted T-shaped geometry to one Ba(1), one Ba(2), and one W(1) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one Ba(1), one Ba(2), and one W(1) atom. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to one Ba(1), one Ba(2), one Mg(1), and one W(1) atom. In the seventh O site, O(7) is bonded in a 4-coordinate geometry to one Ba(1), one Ba(2), one Mg(1), and one W(2) atom. In the eighth O site, O(8) is bonded in a 4-coordinate geometry to one Ba(1), one Ba(2), one Mg(1), and one W(2) atom.