MgCu6PbO8 crystallizes in the cubic F-43m space group. Mg(1) is bonded in a tetrahedral geometry to four equivalent O(1) atoms. Cu(1) is bonded in a rectangular see-saw-like geometry to two equivalent O(1) and two equivalent O(2) atoms. Pb(1) is bonded in a body-centered cubic geometry to four equivalent O(1) and four equivalent O(2) atoms. There are two inequivalent O sites. In the first O site, O(2) is bonded to three equivalent Cu(1) and one Pb(1) atom to form distorted OCu3Pb tetrahedra that share corners with six equivalent O(2)Cu3Pb tetrahedra, corners with four equivalent O(1)MgCu3Pb trigonal bipyramids, and edges with three equivalent O(1)MgCu3Pb trigonal bipyramids. In the second O site, O(1) is bonded to one Mg(1), three equivalent Cu(1), and one Pb(1) atom to form distorted OMgCu3Pb trigonal bipyramids that share corners with four equivalent O(2)Cu3Pb tetrahedra, corners with three equivalent O(1)MgCu3Pb trigonal bipyramids, edges with three equivalent O(2)Cu3Pb tetrahedra, and edges with three equivalent O(1)MgCu3Pb trigonal bipyramids.
MgCu6PbO8 crystallizes in the cubic F-43m space group. Mg(1) is bonded in a tetrahedral geometry to four equivalent O(1) atoms. All Mg(1)-O(1) bond lengths are 1.86 Å. Cu(1) is bonded in a rectangular see-saw-like geometry to two equivalent O(1) and two equivalent O(2) atoms. Both Cu(1)-O(1) bond lengths are 2.15 Å. Both Cu(1)-O(2) bond lengths are 1.94 Å. Pb(1) is bonded in a body-centered cubic geometry to four equivalent O(1) and four equivalent O(2) atoms. All Pb(1)-O(1) bond lengths are 2.37 Å. All Pb(1)-O(2) bond lengths are 2.42 Å. There are two inequivalent O sites. In the first O site, O(2) is bonded to three equivalent Cu(1) and one Pb(1) atom to form distorted OCu3Pb tetrahedra that share corners with six equivalent O(2)Cu3Pb tetrahedra, corners with four equivalent O(1)MgCu3Pb trigonal bipyramids, and edges with three equivalent O(1)MgCu3Pb trigonal bipyramids. In the second O site, O(1) is bonded to one Mg(1), three equivalent Cu(1), and one Pb(1) atom to form distorted OMgCu3Pb trigonal bipyramids that share corners with four equivalent O(2)Cu3Pb tetrahedra, corners with three equivalent O(1)MgCu3Pb trigonal bipyramids, edges with three equivalent O(2)Cu3Pb tetrahedra, and edges with three equivalent O(1)MgCu3Pb trigonal bipyramids.