data_[Pm8Pr4Th4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Pr  1.1300  1.8500  1.0600
  Th  1.3000  1.8000  1.0800
]
_symmetry_space_group_name_H-M [Cmcm]
_cell_length_a [3.5502]
_cell_length_b [28.2732]
_cell_length_c [5.5372]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [Pm2PrTh]
_chemical_formula_sum '[Pm8 Pr4 Th4]'
_cell_volume [555.7953]
_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
[
  Pm  Pm0  4  0.0000  0.0893  0.7500  1
  Pr  Pr1  4  0.0000  0.2177  0.7500  1
  Pm  Pm2  4  0.0000  0.3460  0.7500  1
  Th  Th3  4  0.0000  0.4717  0.7500  1
]