Tl10Hg3Cl16 crystallizes in the tetragonal I4/m space group. There are two inequivalent Hg sites. In the first Hg site, Hg(1) is bonded in a distorted linear geometry to two equivalent Cl(4) and four equivalent Cl(3) atoms. In the second Hg site, Hg(2) is bonded in a tetrahedral geometry to four equivalent Cl(2) atoms. There are two inequivalent Tl sites. In the first Tl site, Tl(1) is bonded in a 3-coordinate geometry to one Cl(1), one Cl(2), and one Cl(3) atom. In the second Tl site, Tl(2) is bonded in a single-bond geometry to one Cl(1) atom. There are four inequivalent Cl sites. In the first Cl site, Cl(4) is bonded in a single-bond geometry to one Hg(1) atom. In the second Cl site, Cl(1) is bonded in a distorted square pyramidal geometry to one Tl(2) and four equivalent Tl(1) atoms. In the third Cl site, Cl(2) is bonded in a distorted single-bond geometry to one Hg(2) and one Tl(1) atom. In the fourth Cl site, Cl(3) is bonded in a 3-coordinate geometry to one Hg(1) and two equivalent Tl(1) atoms.
Tl10Hg3Cl16 crystallizes in the tetragonal I4/m space group. There are two inequivalent Hg sites. In the first Hg site, Hg(1) is bonded in a distorted linear geometry to two equivalent Cl(4) and four equivalent Cl(3) atoms. Both Hg(1)-Cl(4) bond lengths are 2.38 Å. All Hg(1)-Cl(3) bond lengths are 3.03 Å. In the second Hg site, Hg(2) is bonded in a tetrahedral geometry to four equivalent Cl(2) atoms. All Hg(2)-Cl(2) bond lengths are 2.52 Å. There are two inequivalent Tl sites. In the first Tl site, Tl(1) is bonded in a 3-coordinate geometry to one Cl(1), one Cl(2), and one Cl(3) atom. The Tl(1)-Cl(1) bond length is 3.05 Å. The Tl(1)-Cl(2) bond length is 3.18 Å. The Tl(1)-Cl(3) bond length is 3.12 Å. In the second Tl site, Tl(2) is bonded in a single-bond geometry to one Cl(1) atom. The Tl(2)-Cl(1) bond length is 3.18 Å. There are four inequivalent Cl sites. In the first Cl site, Cl(4) is bonded in a single-bond geometry to one Hg(1) atom. In the second Cl site, Cl(1) is bonded in a distorted square pyramidal geometry to one Tl(2) and four equivalent Tl(1) atoms. In the third Cl site, Cl(2) is bonded in a distorted single-bond geometry to one Hg(2) and one Tl(1) atom. In the fourth Cl site, Cl(3) is bonded in a 3-coordinate geometry to one Hg(1) and two equivalent Tl(1) atoms.