data_[Pm12Pr8Tm20]
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 [C2/c]
_cell_length_a [10.6063]
_cell_length_b [16.0935]
_cell_length_c [9.3846]
_cell_angle_alpha [90.0000]
_cell_angle_beta [124.2974]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [Pm3Pr2Tm5]
_chemical_formula_sum '[Pm12 Pr8 Tm20]'
_cell_volume [1323.3481]
_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  0.1434  0.1232  0.5483  1
  Pm  Pm1  8  0.1555  0.3783  0.0482  1
  Pm  Pm2  4  0.0000  0.2709  0.2500  1
  Tm  Tm3  8  0.2372  0.3846  0.7296  1
  Tm  Tm4  4  0.0000  0.0237  0.7500  1
  Tm  Tm5  4  0.0000  0.2310  0.7500  1
  Tm  Tm6  4  0.0000  0.4734  0.2500  1
]