K2HgSnTe4 crystallizes in the tetragonal I-42m space group. K(1) is bonded in a 8-coordinate geometry to eight equivalent Te(1) atoms. Hg(1) is bonded to four equivalent Te(1) atoms to form HgTe4 tetrahedra that share edges with two equivalent Sn(1)Te4 tetrahedra. Sn(1) is bonded to four equivalent Te(1) atoms to form SnTe4 tetrahedra that share edges with two equivalent Hg(1)Te4 tetrahedra. Te(1) is bonded in a distorted hexagonal planar geometry to four equivalent K(1), one Hg(1), and one Sn(1) atom.
K2HgSnTe4 crystallizes in the tetragonal I-42m space group. K(1) is bonded in a 8-coordinate geometry to eight equivalent Te(1) atoms. There are four shorter (3.70 Å) and four longer (3.79 Å) K(1)-Te(1) bond lengths. Hg(1) is bonded to four equivalent Te(1) atoms to form HgTe4 tetrahedra that share edges with two equivalent Sn(1)Te4 tetrahedra. All Hg(1)-Te(1) bond lengths are 2.93 Å. Sn(1) is bonded to four equivalent Te(1) atoms to form SnTe4 tetrahedra that share edges with two equivalent Hg(1)Te4 tetrahedra. All Sn(1)-Te(1) bond lengths are 2.81 Å. Te(1) is bonded in a distorted hexagonal planar geometry to four equivalent K(1), one Hg(1), and one Sn(1) atom.