Pb2MoOsO6 crystallizes in the cubic Fm-3m space group. Mo(1) is bonded to six equivalent O(1) atoms to form MoO6 octahedra that share corners with six equivalent Os(1)O6 octahedra and faces with eight equivalent Pb(1)O12 cuboctahedra. The corner-sharing octahedra are not tilted. Os(1) is bonded to six equivalent O(1) atoms to form OsO6 octahedra that share corners with six equivalent Mo(1)O6 octahedra and faces with eight equivalent Pb(1)O12 cuboctahedra. The corner-sharing octahedra are not tilted. Pb(1) is bonded to twelve equivalent O(1) atoms to form distorted PbO12 cuboctahedra that share corners with twelve equivalent Pb(1)O12 cuboctahedra, faces with six equivalent Pb(1)O12 cuboctahedra, faces with four equivalent Mo(1)O6 octahedra, and faces with four equivalent Os(1)O6 octahedra. O(1) is bonded in a linear geometry to one Mo(1), one Os(1), and four equivalent Pb(1) atoms.
Pb2MoOsO6 crystallizes in the cubic Fm-3m space group. Mo(1) is bonded to six equivalent O(1) atoms to form MoO6 octahedra that share corners with six equivalent Os(1)O6 octahedra and faces with eight equivalent Pb(1)O12 cuboctahedra. The corner-sharing octahedra are not tilted. All Mo(1)-O(1) bond lengths are 2.10 Å. Os(1) is bonded to six equivalent O(1) atoms to form OsO6 octahedra that share corners with six equivalent Mo(1)O6 octahedra and faces with eight equivalent Pb(1)O12 cuboctahedra. The corner-sharing octahedra are not tilted. All Os(1)-O(1) bond lengths are 1.97 Å. Pb(1) is bonded to twelve equivalent O(1) atoms to form distorted PbO12 cuboctahedra that share corners with twelve equivalent Pb(1)O12 cuboctahedra, faces with six equivalent Pb(1)O12 cuboctahedra, faces with four equivalent Mo(1)O6 octahedra, and faces with four equivalent Os(1)O6 octahedra. All Pb(1)-O(1) bond lengths are 2.88 Å. O(1) is bonded in a linear geometry to one Mo(1), one Os(1), and four equivalent Pb(1) atoms.