data_[K2Ag4Sb2Te8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Ag  1.9300  1.6000  1.0867
  Sb  2.0500  1.4500  0.8300
  Te  2.1000  1.4000  1.2933
]
_symmetry_space_group_name_H-M [I222]
_cell_length_a [7.4886]
_cell_length_b [8.2909]
_cell_length_c [9.4053]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [23]
_chemical_formula_structural [KAg2SbTe4]
_chemical_formula_sum '[K2 Ag4 Sb2 Te8]'
_cell_volume [583.9528]
_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
[
  K  K0  2  0.0000  0.0000  0.0000  1.0
  Ag  Ag1  4  0.0000  0.5000  0.1689  1.0
  Sb  Sb2  2  0.0000  0.0000  0.5000  1.0
  Te  Te3  8  0.2107  0.1947  0.3304  1.0
]