data_[Pr8Cr4N8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pr  1.1300  1.8500  1.0600
  Cr  1.6600  1.4000  0.9400
  N  3.0400  0.6500  0.6300
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [11.1304]
_cell_length_b [5.2542]
_cell_length_c [6.7751]
_cell_angle_alpha [90.0000]
_cell_angle_beta [121.2657]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Pr2CrN2]
_chemical_formula_sum '[Pr8 Cr4 N8]'
_cell_volume [338.6722]
_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  0.0403  0.0000  0.2875  1
  Pr  Pr1  4  0.1804  0.5000  0.1141  1
  Cr  Cr2  4  0.1288  0.5000  0.6261  1
  N  N3  4  0.0107  0.5000  0.2952  1
  N  N4  4  0.1874  0.0000  0.1095  1
]