MnPbO3 crystallizes in the monoclinic C2/c space group. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to two equivalent O(3), two equivalent O(4), and two equivalent O(5) atoms to form corner-sharing MnO6 octahedra. The corner-sharing octahedral tilt angles range from 17-25°. In the second Mn site, Mn(2) is bonded to one O(1), one O(3), one O(4), one O(5), and two equivalent O(2) atoms to form a mixture of corner and face-sharing MnO6 octahedra. The corner-sharing octahedral tilt angles range from 17-25°. There are two inequivalent Pb sites. In the first Pb site, Pb(1) is bonded in a 10-coordinate geometry to two equivalent O(1), two equivalent O(3), two equivalent O(4), and four equivalent O(2) atoms. In the second Pb site, Pb(2) is bonded in a 7-coordinate geometry to one O(1), one O(2), one O(4), two equivalent O(3), and two equivalent O(5) atoms. There are five inequivalent O sites. In the first O site, O(4) is bonded in a 4-coordinate geometry to one Mn(1), one Mn(2), one Pb(1), and one Pb(2) atom. In the second O site, O(5) is bonded in a 2-coordinate geometry to one Mn(1), one Mn(2), and two equivalent Pb(2) atoms. In the third O site, O(1) is bonded in an L-shaped geometry to two equivalent Mn(2), two equivalent Pb(1), and two equivalent Pb(2) atoms. In the fourth O site, O(2) is bonded in a distorted L-shaped geometry to two equivalent Mn(2), one Pb(2), and two equivalent Pb(1) atoms. In the fifth O site, O(3) is bonded in a 2-coordinate geometry to one Mn(1), one Mn(2), one Pb(1), and two equivalent Pb(2) atoms.
MnPbO3 crystallizes in the monoclinic C2/c space group. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to two equivalent O(3), two equivalent O(4), and two equivalent O(5) atoms to form corner-sharing MnO6 octahedra. The corner-sharing octahedral tilt angles range from 17-25°. Both Mn(1)-O(3) bond lengths are 1.99 Å. Both Mn(1)-O(4) bond lengths are 1.96 Å. Both Mn(1)-O(5) bond lengths are 2.02 Å. In the second Mn site, Mn(2) is bonded to one O(1), one O(3), one O(4), one O(5), and two equivalent O(2) atoms to form a mixture of corner and face-sharing MnO6 octahedra. The corner-sharing octahedral tilt angles range from 17-25°. The Mn(2)-O(1) bond length is 1.97 Å. The Mn(2)-O(3) bond length is 1.96 Å. The Mn(2)-O(4) bond length is 1.98 Å. The Mn(2)-O(5) bond length is 1.93 Å. There is one shorter (1.92 Å) and one longer (2.01 Å) Mn(2)-O(2) bond length. There are two inequivalent Pb sites. In the first Pb site, Pb(1) is bonded in a 10-coordinate geometry to two equivalent O(1), two equivalent O(3), two equivalent O(4), and four equivalent O(2) atoms. Both Pb(1)-O(1) bond lengths are 2.81 Å. Both Pb(1)-O(3) bond lengths are 2.84 Å. Both Pb(1)-O(4) bond lengths are 2.47 Å. There are two shorter (2.74 Å) and two longer (2.88 Å) Pb(1)-O(2) bond lengths. In the second Pb site, Pb(2) is bonded in a 7-coordinate geometry to one O(1), one O(2), one O(4), two equivalent O(3), and two equivalent O(5) atoms. The Pb(2)-O(1) bond length is 2.84 Å. The Pb(2)-O(2) bond length is 2.66 Å. The Pb(2)-O(4) bond length is 2.61 Å. There is one shorter (2.46 Å) and one longer (2.83 Å) Pb(2)-O(3) bond length. There is one shorter (2.51 Å) and one longer (2.71 Å) Pb(2)-O(5) bond length. There are five inequivalent O sites. In the first O site, O(4) is bonded in a 4-coordinate geometry to one Mn(1), one Mn(2), one Pb(1), and one Pb(2) atom. In the second O site, O(5) is bonded in a 2-coordinate geometry to one Mn(1), one Mn(2), and two equivalent Pb(2) atoms. In the third O site, O(1) is bonded in an L-shaped geometry to two equivalent Mn(2), two equivalent Pb(1), and two equivalent Pb(2) atoms. In the fourth O site, O(2) is bonded in a distorted L-shaped geometry to two equivalent Mn(2), one Pb(2), and two equivalent Pb(1) atoms. In the fifth O site, O(3) is bonded in a 2-coordinate geometry to one Mn(1), one Mn(2), one Pb(1), and two equivalent Pb(2) atoms.