data_[Ag4Sn4Te8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ag  1.9300  1.6000  1.0867
  Sn  1.9600  1.4500  0.8300
  Te  2.1000  1.4000  1.2933
]
_symmetry_space_group_name_H-M [I-42d]
_cell_length_a [6.6167]
_cell_length_b [6.6167]
_cell_length_c [13.6494]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [122]
_chemical_formula_structural [AgSnTe2]
_chemical_formula_sum '[Ag4 Sn4 Te8]'
_cell_volume [597.5800]
_cell_formula_units_Z [4]
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
[
  Ag  Ag0  4  0.0000  0.0000  0.0000  1.0
  Sn  Sn1  4  0.0000  0.0000  0.5000  1.0
  Te  Te2  8  0.2327  0.7500  0.1250  1.0
]