MgHg3 is Sodium arsenide structured and crystallizes in the hexagonal P6_3/mmc space group. Mg(1) is bonded in a 11-coordinate geometry to three equivalent Hg(2) and eight equivalent Hg(1) atoms. There are two inequivalent Hg sites. In the first Hg site, Hg(1) is bonded in a 1-coordinate geometry to four equivalent Mg(1) atoms. In the second Hg site, Hg(2) is bonded in a trigonal planar geometry to three equivalent Mg(1) atoms.
MgHg3 is Sodium arsenide structured and crystallizes in the hexagonal P6_3/mmc space group. Mg(1) is bonded in a 11-coordinate geometry to three equivalent Hg(2) and eight equivalent Hg(1) atoms. All Mg(1)-Hg(2) bond lengths are 2.85 Å. There are two shorter (2.91 Å) and six longer (3.26 Å) Mg(1)-Hg(1) bond lengths. There are two inequivalent Hg sites. In the first Hg site, Hg(1) is bonded in a 1-coordinate geometry to four equivalent Mg(1) atoms. In the second Hg site, Hg(2) is bonded in a trigonal planar geometry to three equivalent Mg(1) atoms.