MgMo2(Pb2O5)2 crystallizes in the monoclinic C2 space group. Mg(1) is bonded in a distorted see-saw-like geometry to two equivalent O(4) and two equivalent O(5) atoms. Mo(1) is bonded in a tetrahedral geometry to one O(3), one O(4), one O(5), and one O(6) atom. There are two inequivalent Pb sites. In the first Pb site, Pb(1) is bonded in a 4-coordinate geometry to one O(1), one O(2), one O(3), and one O(5) atom. In the second Pb site, Pb(2) is bonded in a 4-coordinate geometry to one O(1), one O(2), one O(4), and one O(5) atom. There are six inequivalent O sites. In the first O site, O(1) is bonded to two equivalent Pb(1) and two equivalent Pb(2) atoms to form edge-sharing OPb4 tetrahedra. In the second O site, O(2) is bonded to two equivalent Pb(1) and two equivalent Pb(2) atoms to form edge-sharing OPb4 tetrahedra. In the third O site, O(3) is bonded in a linear geometry to one Mo(1) and one Pb(1) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Mg(1), one Mo(1), and one Pb(2) atom. In the fifth O site, O(5) is bonded in a 2-coordinate geometry to one Mg(1), one Mo(1), one Pb(1), and one Pb(2) atom. In the sixth O site, O(6) is bonded in a single-bond geometry to one Mo(1) atom.
MgMo2(Pb2O5)2 crystallizes in the monoclinic C2 space group. Mg(1) is bonded in a distorted see-saw-like geometry to two equivalent O(4) and two equivalent O(5) atoms. Both Mg(1)-O(4) bond lengths are 2.01 Å. Both Mg(1)-O(5) bond lengths are 2.00 Å. Mo(1) is bonded in a tetrahedral geometry to one O(3), one O(4), one O(5), and one O(6) atom. The Mo(1)-O(3) bond length is 1.83 Å. The Mo(1)-O(4) bond length is 1.95 Å. The Mo(1)-O(5) bond length is 1.95 Å. The Mo(1)-O(6) bond length is 1.79 Å. There are two inequivalent Pb sites. In the first Pb site, Pb(1) is bonded in a 4-coordinate geometry to one O(1), one O(2), one O(3), and one O(5) atom. The Pb(1)-O(1) bond length is 2.41 Å. The Pb(1)-O(2) bond length is 2.27 Å. The Pb(1)-O(3) bond length is 2.41 Å. The Pb(1)-O(5) bond length is 2.63 Å. In the second Pb site, Pb(2) is bonded in a 4-coordinate geometry to one O(1), one O(2), one O(4), and one O(5) atom. The Pb(2)-O(1) bond length is 2.32 Å. The Pb(2)-O(2) bond length is 2.43 Å. The Pb(2)-O(4) bond length is 2.47 Å. The Pb(2)-O(5) bond length is 2.78 Å. There are six inequivalent O sites. In the first O site, O(1) is bonded to two equivalent Pb(1) and two equivalent Pb(2) atoms to form edge-sharing OPb4 tetrahedra. In the second O site, O(2) is bonded to two equivalent Pb(1) and two equivalent Pb(2) atoms to form edge-sharing OPb4 tetrahedra. In the third O site, O(3) is bonded in a linear geometry to one Mo(1) and one Pb(1) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Mg(1), one Mo(1), and one Pb(2) atom. In the fifth O site, O(5) is bonded in a 2-coordinate geometry to one Mg(1), one Mo(1), one Pb(1), and one Pb(2) atom. In the sixth O site, O(6) is bonded in a single-bond geometry to one Mo(1) atom.