data_[Pr16As4P8O4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pr  1.1300  1.8500  1.0600
  As  2.1800  1.1500  0.6600
  P  2.1900  1.0000  0.5500
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Cmcm]
_cell_length_a [4.1567]
_cell_length_b [13.6163]
_cell_length_c [14.5215]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [Pr4AsP2O]
_chemical_formula_sum '[Pr16 As4 P8 O4]'
_cell_volume [821.9010]
_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  8  0.0000  0.2676  0.1249  1.0
  Pr  Pr1  4  0.0000  0.0000  0.0000  1.0
  Pr  Pr2  4  0.0000  0.4340  0.7500  1.0
  As  As3  4  0.0000  0.1100  0.7500  1.0
  P  P4  8  0.0000  0.3647  0.5575  1.0
  O  O5  4  0.0000  0.1578  0.2500  1.0
]