data_[Pr16Ag4N8]
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
  N  3.0400  0.6500  0.6300
]
_symmetry_space_group_name_H-M [Cmcm]
_cell_length_a [3.7727]
_cell_length_b [12.6416]
_cell_length_c [13.5855]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [Pr4AgN2]
_chemical_formula_sum '[Pr16 Ag4 N8]'
_cell_volume [647.9286]
_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  8  0.0000  0.2366  0.6043  1
  Pr  Pr1  4  0.0000  0.0749  0.2500  1
  Pr  Pr2  4  0.0000  0.5000  0.0000  1
  Ag  Ag3  4  0.0000  0.3897  0.2500  1
  N  N4  8  0.0000  0.1401  0.0554  1
]