MgMn2(SO5)2 crystallizes in the triclinic P1 space group. Mg(1) is bonded in a 6-coordinate geometry to one O(1), one O(4), one O(5), one O(6), one O(7), and one O(8) 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(4), one O(6), one O(7), and one O(9) atom to form MnO6 octahedra that share corners with two equivalent Mn(2)O6 octahedra, corners with two equivalent S(1)O4 tetrahedra, and corners with two equivalent S(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 41-45°. In the second Mn site, Mn(2) is bonded to one O(1), one O(10), one O(2), one O(3), one O(5), and one O(8) atom to form distorted MnO6 octahedra that share corners with two equivalent Mn(1)O6 octahedra, corners with two equivalent S(1)O4 tetrahedra, and corners with two equivalent S(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 41-45°. There are two inequivalent S sites. In the first S site, S(1) is bonded to one O(3), one O(4), one O(7), and one O(8) atom to form SO4 tetrahedra that share corners with two equivalent Mn(1)O6 octahedra and corners with two equivalent Mn(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 34-55°. In the second S site, S(2) is bonded to one O(10), one O(5), one O(6), and one O(9) atom to form SO4 tetrahedra that share corners with two equivalent Mn(1)O6 octahedra and corners with two equivalent Mn(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 23-49°. There are ten inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one Mg(1), one Mn(1), and one Mn(2) atom. In the second O site, O(2) is bonded in a distorted bent 150 degrees geometry to one Mn(1) and one Mn(2) atom. In the third O site, O(3) is bonded in a distorted bent 150 degrees geometry to one Mn(2) and one S(1) atom. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to one Mg(1), one Mn(1), and one S(1) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one Mg(1), one Mn(2), and one S(2) atom. In the sixth O site, O(6) is bonded in a 3-coordinate geometry to one Mg(1), one Mn(1), and one S(2) atom. In the seventh O site, O(7) is bonded in a distorted T-shaped geometry to one Mg(1), one Mn(1), and one S(1) atom. In the eighth O site, O(8) is bonded in a 3-coordinate geometry to one Mg(1), one Mn(2), and one S(1) atom. In the ninth O site, O(9) is bonded in a bent 150 degrees geometry to one Mn(1) and one S(2) atom. In the tenth O site, O(10) is bonded in a bent 150 degrees geometry to one Mn(2) and one S(2) atom.
MgMn2(SO5)2 crystallizes in the triclinic P1 space group. Mg(1) is bonded in a 6-coordinate geometry to one O(1), one O(4), one O(5), one O(6), one O(7), and one O(8) atom. The Mg(1)-O(1) bond length is 1.95 Å. The Mg(1)-O(4) bond length is 2.13 Å. The Mg(1)-O(5) bond length is 2.46 Å. The Mg(1)-O(6) bond length is 2.18 Å. The Mg(1)-O(7) bond length is 2.16 Å. The Mg(1)-O(8) bond length is 2.18 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(4), one O(6), one O(7), and one O(9) atom to form MnO6 octahedra that share corners with two equivalent Mn(2)O6 octahedra, corners with two equivalent S(1)O4 tetrahedra, and corners with two equivalent S(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 41-45°. The Mn(1)-O(1) bond length is 1.90 Å. The Mn(1)-O(2) bond length is 1.82 Å. The Mn(1)-O(4) bond length is 2.25 Å. The Mn(1)-O(6) bond length is 2.12 Å. The Mn(1)-O(7) bond length is 2.27 Å. The Mn(1)-O(9) bond length is 2.09 Å. In the second Mn site, Mn(2) is bonded to one O(1), one O(10), one O(2), one O(3), one O(5), and one O(8) atom to form distorted MnO6 octahedra that share corners with two equivalent Mn(1)O6 octahedra, corners with two equivalent S(1)O4 tetrahedra, and corners with two equivalent S(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 41-45°. The Mn(2)-O(1) bond length is 1.90 Å. The Mn(2)-O(10) bond length is 2.14 Å. The Mn(2)-O(2) bond length is 1.82 Å. The Mn(2)-O(3) bond length is 2.15 Å. The Mn(2)-O(5) bond length is 2.13 Å. The Mn(2)-O(8) bond length is 2.38 Å. There are two inequivalent S sites. In the first S site, S(1) is bonded to one O(3), one O(4), one O(7), and one O(8) atom to form SO4 tetrahedra that share corners with two equivalent Mn(1)O6 octahedra and corners with two equivalent Mn(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 34-55°. The S(1)-O(3) bond length is 1.46 Å. The S(1)-O(4) bond length is 1.51 Å. The S(1)-O(7) bond length is 1.51 Å. The S(1)-O(8) bond length is 1.50 Å. In the second S site, S(2) is bonded to one O(10), one O(5), one O(6), and one O(9) atom to form SO4 tetrahedra that share corners with two equivalent Mn(1)O6 octahedra and corners with two equivalent Mn(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 23-49°. The S(2)-O(10) bond length is 1.46 Å. The S(2)-O(5) bond length is 1.51 Å. The S(2)-O(6) bond length is 1.52 Å. The S(2)-O(9) bond length is 1.46 Å. There are ten inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one Mg(1), one Mn(1), and one Mn(2) atom. In the second O site, O(2) is bonded in a distorted bent 150 degrees geometry to one Mn(1) and one Mn(2) atom. In the third O site, O(3) is bonded in a distorted bent 150 degrees geometry to one Mn(2) and one S(1) atom. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to one Mg(1), one Mn(1), and one S(1) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one Mg(1), one Mn(2), and one S(2) atom. In the sixth O site, O(6) is bonded in a 3-coordinate geometry to one Mg(1), one Mn(1), and one S(2) atom. In the seventh O site, O(7) is bonded in a distorted T-shaped geometry to one Mg(1), one Mn(1), and one S(1) atom. In the eighth O site, O(8) is bonded in a 3-coordinate geometry to one Mg(1), one Mn(2), and one S(1) atom. In the ninth O site, O(9) is bonded in a bent 150 degrees geometry to one Mn(1) and one S(2) atom. In the tenth O site, O(10) is bonded in a bent 150 degrees geometry to one Mn(2) and one S(2) atom.