Mg3Pb is Uranium Silicide-like structured and crystallizes in the tetragonal I4/mmm space group. There are two inequivalent Mg sites. In the first Mg site, Mg(1) is bonded in a distorted square co-planar geometry to four equivalent Pb(1) atoms. In the second Mg site, Mg(2) is bonded to four equivalent Pb(1) atoms to form a mixture of distorted corner and edge-sharing MgPb4 cuboctahedra. Pb(1) is bonded to four equivalent Mg(1) and eight equivalent Mg(2) atoms to form a mixture of face, corner, and edge-sharing PbMg12 cuboctahedra.
Mg3Pb is Uranium Silicide-like structured and crystallizes in the tetragonal I4/mmm space group. There are two inequivalent Mg sites. In the first Mg site, Mg(1) is bonded in a distorted square co-planar geometry to four equivalent Pb(1) atoms. All Mg(1)-Pb(1) bond lengths are 3.20 Å. In the second Mg site, Mg(2) is bonded to four equivalent Pb(1) atoms to form a mixture of distorted corner and edge-sharing MgPb4 cuboctahedra. All Mg(2)-Pb(1) bond lengths are 3.22 Å. Pb(1) is bonded to four equivalent Mg(1) and eight equivalent Mg(2) atoms to form a mixture of face, corner, and edge-sharing PbMg12 cuboctahedra.