data_[Pr4Bi8Se16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pr  1.1300  1.8500  1.0600
  Bi  2.0200  1.6000  1.0350
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [Cmcm]
_cell_length_a [4.4430]
_cell_length_b [13.5270]
_cell_length_c [13.8199]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [Pr(BiSe2)2]
_chemical_formula_sum '[Pr4 Bi8 Se16]'
_cell_volume [830.5745]
_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  0.3759  0.2500  1
  Bi  Bi1  8  0.0000  0.1265  0.0626  1
  Se  Se2  8  0.0000  0.2267  0.6230  1
  Se  Se3  4  0.0000  0.0228  0.2500  1
  Se  Se4  4  0.0000  0.5000  0.0000  1
]