data_[Pr4Ag4Se4O4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pr  1.1300  1.8500  1.0600
  Ag  1.9300  1.6000  1.0867
  Se  2.5500  1.1500  1.0133
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Pcca]
_cell_length_a [5.7873]
_cell_length_b [9.4497]
_cell_length_c [5.7886]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [54]
_chemical_formula_structural [PrAgSeO]
_chemical_formula_sum '[Pr4 Ag4 Se4 O4]'
_cell_volume [316.5714]
_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
[
  Pr  Pr0  4  0.0000  0.1268  0.2500  1
  Ag  Ag1  4  0.2500  0.5000  0.4737  1
  Se  Se2  4  0.0000  0.2987  0.7500  1
  O  O3  4  0.2500  0.0000  0.0001  1
]