data_[Pr8Nb4Sb4N20]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pr  1.1300  1.8500  1.0600
  Nb  1.6000  1.4500  0.8200
  Sb  2.0500  1.4500  0.8300
  N  3.0400  0.6500  0.6300
]
_symmetry_space_group_name_H-M [Cmc2_1]
_cell_length_a [3.3996]
_cell_length_b [13.9510]
_cell_length_c [10.8307]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [36]
_chemical_formula_structural [Pr2NbSbN5]
_chemical_formula_sum '[Pr8 Nb4 Sb4 N20]'
_cell_volume [513.6696]
_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  0.1128  0.7016  1
  Pr  Pr1  4  0.0000  0.1464  0.2818  1
  Nb  Nb2  4  0.0000  0.2291  0.0104  1
  Sb  Sb3  4  0.0000  0.4730  0.4621  1
  N  N4  4  0.0000  0.0554  0.0603  1
  N  N5  4  0.0000  0.2803  0.6404  1
  N  N6  4  0.0000  0.3140  0.3815  1
  N  N7  4  0.0000  0.3681  0.0033  1
  N  N8  4  0.0000  0.4915  0.7826  1
]