data_[Pr4Br8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pr  1.1300  1.8500  1.0600
  Br  2.9600  1.1500  0.8825
]
_symmetry_space_group_name_H-M [Pnma]
_cell_length_a [11.7160]
_cell_length_b [3.8163]
_cell_length_c [8.3361]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [62]
_chemical_formula_structural [PrBr2]
_chemical_formula_sum '[Pr4 Br8]'
_cell_volume [372.7200]
_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  0.1746  0.7500  0.8673  1.0
  Br  Br1  4  0.0979  0.2500  0.1407  1.0
  Br  Br2  4  0.1248  0.2500  0.5947  1.0
]