Materials Data on HgPb3 by Materials Project
HgPb3 crystallizes in the tetragonal P4/mmm space group. The structure is three-dimensional. Hg is bonded in a body-centered cubic geometry to eight equivalent Pb atoms. All Hg–Pb bond lengths are 3.37 Å. There are two inequivalent Pb sites. In the first Pb site, Pb is bonded in a 9-coordinate geometry to four equivalent Hg and four equivalent Pb atoms. All Pb–Pb bond lengths are 3.45 Å. In the second Pb site, Pb is bonded in a body-centered cubic geometry to eight equivalent Pb atoms.