data_[Ag8Sb2Se4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ag  1.9300  1.6000  1.0867
  Sb  2.0500  1.4500  0.8300
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [P1]
_cell_length_a [7.3654]
_cell_length_b [7.3850]
_cell_length_c [7.4906]
_cell_angle_alpha [68.6094]
_cell_angle_beta [64.5629]
_cell_angle_gamma [81.1558]
_symmetry_Int_Tables_number [1]
_chemical_formula_structural [Ag4SbSe2]
_chemical_formula_sum '[Ag8 Sb2 Se4]'
_cell_volume [342.5961]
_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
[
  Ag  Ag0  1  0.0288  0.3811  0.8333  1
  Ag  Ag1  1  0.0757  0.1323  0.5900  1
  Ag  Ag2  1  0.3436  0.9560  0.1877  1
  Ag  Ag3  1  0.3931  0.7387  0.8885  1
  Ag  Ag4  1  0.6457  0.2624  0.8657  1
  Ag  Ag5  1  0.7070  0.8224  0.3456  1
  Ag  Ag6  1  0.7689  0.8333  0.9327  1
  Ag  Ag7  1  0.9337  0.1564  0.2816  1
  Sb  Sb8  1  0.0614  0.9737  0.9899  1
  Sb  Sb9  1  0.5580  0.4644  0.2988  1
  Se  Se10  1  0.2983  0.3310  0.1965  1
  Se  Se11  1  0.3238  0.6665  0.5361  1
  Se  Se12  1  0.5916  0.1462  0.5974  1
  Se  Se13  1  0.7704  0.6357  0.7061  1
]