Mg5Pb crystallizes in the hexagonal P-62m space group. There are two inequivalent Mg sites. In the first Mg site, Mg(1) is bonded in a distorted water-like geometry to two equivalent Pb(1) atoms. In the second Mg site, Mg(2) is bonded in a distorted trigonal planar geometry to three equivalent Pb(1) atoms. Pb(1) is bonded to six equivalent Mg(1) and six equivalent Mg(2) atoms to form a mixture of edge and face-sharing PbMg12 cuboctahedra.
Mg5Pb crystallizes in the hexagonal P-62m space group. There are two inequivalent Mg sites. In the first Mg site, Mg(1) is bonded in a distorted water-like geometry to two equivalent Pb(1) atoms. Both Mg(1)-Pb(1) bond lengths are 3.20 Å. In the second Mg site, Mg(2) is bonded in a distorted trigonal planar geometry to three equivalent Pb(1) atoms. All Mg(2)-Pb(1) bond lengths are 3.25 Å. Pb(1) is bonded to six equivalent Mg(1) and six equivalent Mg(2) atoms to form a mixture of edge and face-sharing PbMg12 cuboctahedra.