data_[Pm20Pr8Tm8]
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
  Tm  1.2500  1.7500  1.0950
]
_symmetry_space_group_name_H-M [Ima2]
_cell_length_a [13.0019]
_cell_length_b [8.6060]
_cell_length_c [11.0668]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [46]
_chemical_formula_structural [Pm5(PrTm)2]
_chemical_formula_sum '[Pm20 Pr8 Tm8]'
_cell_volume [1238.3216]
_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  8  0.0792  0.1890  0.7160  1
  Pm  Pm1  8  0.1326  0.5605  0.7167  1
  Pr  Pr2  4  0.0000  0.0000  0.9643  1
  Pm  Pm3  4  0.2500  0.2467  0.4748  1
  Pr  Pr4  4  0.2500  0.6046  0.3250  1
  Tm  Tm5  8  0.1124  0.8814  0.5172  1
]