Ag2Hg5 crystallizes in the tetragonal P4/mbm space group. Ag(1) is bonded to two equivalent Ag(1), two equivalent Hg(1), and eight equivalent Hg(2) atoms to form a mixture of edge, face, and corner-sharing AgAg2Hg10 cuboctahedra. There are two inequivalent Hg sites. In the first Hg site, Hg(1) is bonded in a distorted q6 geometry to four equivalent Ag(1), two equivalent Hg(1), and four equivalent Hg(2) atoms. In the second Hg site, Hg(2) is bonded in a 9-coordinate geometry to four equivalent Ag(1), one Hg(1), and four equivalent Hg(2) atoms.
Ag2Hg5 crystallizes in the tetragonal P4/mbm space group. Ag(1) is bonded to two equivalent Ag(1), two equivalent Hg(1), and eight equivalent Hg(2) atoms to form a mixture of edge, face, and corner-sharing AgAg2Hg10 cuboctahedra. Both Ag(1)-Ag(1) bond lengths are 3.09 Å. Both Ag(1)-Hg(1) bond lengths are 3.05 Å. There are four shorter (3.06 Å) and four longer (3.18 Å) Ag(1)-Hg(2) bond lengths. There are two inequivalent Hg sites. In the first Hg site, Hg(1) is bonded in a distorted q6 geometry to four equivalent Ag(1), two equivalent Hg(1), and four equivalent Hg(2) atoms. Both Hg(1)-Hg(1) bond lengths are 3.09 Å. All Hg(1)-Hg(2) bond lengths are 3.13 Å. In the second Hg site, Hg(2) is bonded in a 9-coordinate geometry to four equivalent Ag(1), one Hg(1), and four equivalent Hg(2) atoms. There are two shorter (3.06 Å) and two longer (3.09 Å) Hg(2)-Hg(2) bond lengths.