MgMnPbO3 crystallizes in the monoclinic Cm space group. Mg(1) is bonded in a 3-coordinate geometry to one O(1) and two equivalent O(2) atoms. Mn(1) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form corner-sharing MnO6 octahedra. The corner-sharing octahedral tilt angles are 4°. Pb(1) is bonded in a 3-coordinate geometry to one O(1) and two equivalent O(2) atoms. There are two inequivalent O sites. In the first O site, O(1) is bonded in a distorted rectangular see-saw-like geometry to one Mg(1), two equivalent Mn(1), and one Pb(1) atom. In the second O site, O(2) is bonded in a distorted rectangular see-saw-like geometry to one Mg(1), two equivalent Mn(1), and one Pb(1) atom.
MgMnPbO3 crystallizes in the monoclinic Cm space group. Mg(1) is bonded in a 3-coordinate geometry to one O(1) and two equivalent O(2) atoms. The Mg(1)-O(1) bond length is 1.99 Å. Both Mg(1)-O(2) bond lengths are 1.99 Å. Mn(1) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form corner-sharing MnO6 octahedra. The corner-sharing octahedral tilt angles are 4°. There is one shorter (2.19 Å) and one longer (2.29 Å) Mn(1)-O(1) bond length. There are two shorter (2.19 Å) and two longer (2.28 Å) Mn(1)-O(2) bond lengths. Pb(1) is bonded in a 3-coordinate geometry to one O(1) and two equivalent O(2) atoms. The Pb(1)-O(1) bond length is 2.32 Å. Both Pb(1)-O(2) bond lengths are 2.32 Å. There are two inequivalent O sites. In the first O site, O(1) is bonded in a distorted rectangular see-saw-like geometry to one Mg(1), two equivalent Mn(1), and one Pb(1) atom. In the second O site, O(2) is bonded in a distorted rectangular see-saw-like geometry to one Mg(1), two equivalent Mn(1), and one Pb(1) atom.