data_SiHg2Te
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.49
_cell_length_b   3.49
_cell_length_c   10.36
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   114.17
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SiHg2Te
_chemical_formula_sum   'Si1 Hg2 Te1'
_cell_volume   115.44
_cell_formula_units_Z   1
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
loop_
 _atom_site_type_symbol
 _atom_site_label
 _atom_site_symmetry_multiplicity
 _atom_site_fract_x
 _atom_site_fract_y
 _atom_site_fract_z
 _atom_site_occupancy
  Si  Si2  1  0.0  0.0  0.06  1.0
  Hg  Hg0  1  0.0  0.0  0.2  1.0
  Hg  Hg1  1  0.9  0.0  0.43  1.0
  Te  Te3  1  0.9  0.0  0.22  1.0

data_SiHg2Te
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.49
_cell_length_b   3.49
_cell_length_c   10.36
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   114.17
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SiHg2Te
_chemical_formula_sum   'Si1 Hg2 Te1'
_cell_volume   115.44
_cell_formula_units_Z   1
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
loop_
 _atom_site_type_symbol
 _atom_site_label
 _atom_site_symmetry_multiplicity
 _atom_site_fract_x
 _atom_site_fract_y
 _atom_site_fract_z
 _atom_site_occupancy
  Si  Si0  1  0.0  0.0  0.06  1.0
  Hg  Hg1  1  0.0  0.0  0.2  1.0
  Hg  Hg2  1  0.9  0.0  0.43  1.0
  Te  Te3  1  0.9  0.0  0.22  1.0

Si Hg Hg Te
Hg2SiTe is Indium-like structured and crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one Hg2SiTe cluster. There are two inequivalent Hg sites. In the first Hg site, Hg(1) is bonded in a distorted single-bond geometry to one Si(1) and one Te(1) atom. The Hg(1)-Si(1) bond length is 1.52 Å. The Hg(1)-Te(1) bond length is 0.38 Å. In the second Hg site, Hg(2) is bonded in a single-bond geometry to one Te(1) atom. The Hg(2)-Te(1) bond length is 2.18 Å. Si(1) is bonded in a single-bond geometry to one Hg(1) atom. Te(1) is bonded in a single-bond geometry to one Hg(1) and one Hg(2) atom.