data_[Tl2Hg4Te2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tl  1.6200  1.9000  1.3325
  Hg  2.0000  1.5000  1.2450
  Te  2.1000  1.4000  1.2933
]
_symmetry_space_group_name_H-M [Cmmm]
_cell_length_a [4.0526]
_cell_length_b [5.0983]
_cell_length_c [11.2267]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [65]
_chemical_formula_structural [TlHg2Te]
_chemical_formula_sum '[Tl2 Hg4 Te2]'
_cell_volume [231.9593]
_cell_formula_units_Z [2]
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
[
  Tl  Tl0  2  0.0000  0.5000  0.5000  1
  Hg  Hg1  4  0.0000  0.0000  0.2532  1
  Te  Te2  2  0.0000  0.5000  0.0000  1
]