data_[Pr28Er4Tm12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pr  1.1300  1.8500  1.0600
  Er  1.2400  1.7500  1.0300
  Tm  1.2500  1.7500  1.0950
]
_symmetry_space_group_name_H-M [Cmcm]
_cell_length_a [18.6213]
_cell_length_b [7.1672]
_cell_length_c [11.4648]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [Pr7ErTm3]
_chemical_formula_sum '[Pr28 Er4 Tm12]'
_cell_volume [1530.1067]
_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  16  0.1622  0.2497  0.5309  1
  Pr  Pr1  8  0.0879  0.2483  0.2500  1
  Pr  Pr2  4  0.0000  0.2503  0.7500  1
  Er  Er3  4  0.0000  0.5000  0.0000  1
  Tm  Tm4  8  0.2495  0.4997  0.2500  1
  Tm  Tm5  4  0.0000  0.0000  0.0000  1
]