MgMn2Tl2O6 crystallizes in the triclinic P1 space group. Mg(1) is bonded in a 3-coordinate geometry to one Tl(1), one O(4), one O(5), and one O(6) atom. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom to form distorted edge-sharing MnO6 octahedra. In the second Mn site, Mn(2) is bonded to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom to form edge-sharing MnO6 octahedra. There are two inequivalent Tl sites. In the first Tl site, Tl(1) is bonded in a 4-coordinate geometry to one Mg(1), one O(1), one O(2), and one O(3) atom. In the second Tl site, Tl(2) is bonded in a 3-coordinate geometry to one O(4), one O(5), and one O(6) atom. There are six inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one Mn(1), one Mn(2), and one Tl(1) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one Mn(1), one Mn(2), and one Tl(1) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one Mn(1), one Mn(2), and one Tl(1) atom. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to one Mg(1), one Mn(1), one Mn(2), and one Tl(2) atom. In the fifth O site, O(5) is bonded in a 4-coordinate geometry to one Mg(1), one Mn(1), one Mn(2), and one Tl(2) atom. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to one Mg(1), one Mn(1), one Mn(2), and one Tl(2) atom.
MgMn2Tl2O6 crystallizes in the triclinic P1 space group. Mg(1) is bonded in a 3-coordinate geometry to one Tl(1), one O(4), one O(5), and one O(6) atom. The Mg(1)-Tl(1) bond length is 2.80 Å. The Mg(1)-O(4) bond length is 2.02 Å. The Mg(1)-O(5) bond length is 2.01 Å. The Mg(1)-O(6) bond length is 2.02 Å. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom to form distorted edge-sharing MnO6 octahedra. The Mn(1)-O(1) bond length is 1.90 Å. The Mn(1)-O(2) bond length is 1.90 Å. The Mn(1)-O(3) bond length is 1.90 Å. The Mn(1)-O(4) bond length is 2.01 Å. The Mn(1)-O(5) bond length is 2.01 Å. The Mn(1)-O(6) bond length is 2.01 Å. In the second Mn site, Mn(2) is bonded to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom to form edge-sharing MnO6 octahedra. The Mn(2)-O(1) bond length is 1.94 Å. The Mn(2)-O(2) bond length is 1.94 Å. The Mn(2)-O(3) bond length is 1.94 Å. The Mn(2)-O(4) bond length is 1.98 Å. The Mn(2)-O(5) bond length is 1.98 Å. The Mn(2)-O(6) bond length is 1.98 Å. There are two inequivalent Tl sites. In the first Tl site, Tl(1) is bonded in a 4-coordinate geometry to one Mg(1), one O(1), one O(2), and one O(3) atom. The Tl(1)-O(1) bond length is 2.32 Å. The Tl(1)-O(2) bond length is 2.32 Å. The Tl(1)-O(3) bond length is 2.32 Å. In the second Tl site, Tl(2) is bonded in a 3-coordinate geometry to one O(4), one O(5), and one O(6) atom. The Tl(2)-O(4) bond length is 2.41 Å. The Tl(2)-O(5) bond length is 2.41 Å. The Tl(2)-O(6) bond length is 2.41 Å. There are six inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one Mn(1), one Mn(2), and one Tl(1) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one Mn(1), one Mn(2), and one Tl(1) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one Mn(1), one Mn(2), and one Tl(1) atom. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to one Mg(1), one Mn(1), one Mn(2), and one Tl(2) atom. In the fifth O site, O(5) is bonded in a 4-coordinate geometry to one Mg(1), one Mn(1), one Mn(2), and one Tl(2) atom. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to one Mg(1), one Mn(1), one Mn(2), and one Tl(2) atom.