Hg5(O2Cl)2 crystallizes in the orthorhombic Ibam space group. There are three inequivalent Hg sites. In the first Hg site, Hg(1) is bonded in a distorted linear geometry to two equivalent O(1) and three equivalent Cl(1) atoms. In the second Hg site, Hg(2) is bonded in a linear geometry to two equivalent O(1) atoms. In the third Hg site, Hg(3) is bonded in a 4-coordinate geometry to four equivalent O(1) atoms. O(1) is bonded in a distorted trigonal non-coplanar geometry to one Hg(1), one Hg(2), and one Hg(3) atom. Cl(1) is bonded in a distorted T-shaped geometry to three equivalent Hg(1) atoms.
Hg5(O2Cl)2 crystallizes in the orthorhombic Ibam space group. There are three inequivalent Hg sites. In the first Hg site, Hg(1) is bonded in a distorted linear geometry to two equivalent O(1) and three equivalent Cl(1) atoms. Both Hg(1)-O(1) bond lengths are 2.08 Å. There are a spread of Hg(1)-Cl(1) bond distances ranging from 2.94-3.02 Å. In the second Hg site, Hg(2) is bonded in a linear geometry to two equivalent O(1) atoms. Both Hg(2)-O(1) bond lengths are 2.06 Å. In the third Hg site, Hg(3) is bonded in a 4-coordinate geometry to four equivalent O(1) atoms. All Hg(3)-O(1) bond lengths are 2.28 Å. O(1) is bonded in a distorted trigonal non-coplanar geometry to one Hg(1), one Hg(2), and one Hg(3) atom. Cl(1) is bonded in a distorted T-shaped geometry to three equivalent Hg(1) atoms.