data_[Pm4Pr4Nd8Tm20]
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
  Nd  1.1400  1.8500  1.2765
  Tm  1.2500  1.7500  1.0950
]
_symmetry_space_group_name_H-M [I4/mcm]
_cell_length_a [8.7059]
_cell_length_b [8.7059]
_cell_length_c [15.4467]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [140]
_chemical_formula_structural [PmPrNd2Tm5]
_chemical_formula_sum '[Pm4 Pr4 Nd8 Tm20]'
_cell_volume [1170.7525]
_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  0.0000  0.2500  1
  Pm  Pm1  4  0.0000  0.5000  0.2500  1
  Nd  Nd2  8  0.1171  0.6171  0.5000  1
  Tm  Tm3  16  0.2095  0.2905  0.3630  1
  Tm  Tm4  4  0.0000  0.0000  0.0000  1
]