data_[Pr4Er8Sb4N16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pr  1.1300  1.8500  1.0600
  Er  1.2400  1.7500  1.0300
  Sb  2.0500  1.4500  0.8300
  N  3.0400  0.6500  0.6300
]
_symmetry_space_group_name_H-M [Cmcm]
_cell_length_a [3.3357]
_cell_length_b [13.3321]
_cell_length_c [11.6319]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [PrEr2SbN4]
_chemical_formula_sum '[Pr4 Er8 Sb4 N16]'
_cell_volume [517.2855]
_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  0.2355  0.7500  1
  Er  Er1  8  0.0000  0.3688  0.0022  1
  Sb  Sb2  4  0.0000  0.0169  0.2500  1
  N  N3  8  0.0000  0.2128  0.1043  1
  N  N4  4  0.0000  0.0000  0.0000  1
  N  N5  4  0.0000  0.4145  0.2500  1
]