data_[Ac8Pr20Y4Er4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ac  1.1000  1.9500  1.2600
  Pr  1.1300  1.8500  1.0600
  Y  1.2200  1.8000  1.0400
  Er  1.2400  1.7500  1.0300
]
_symmetry_space_group_name_H-M [Cmcm]
_cell_length_a [5.6566]
_cell_length_b [22.7922]
_cell_length_c [10.5100]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [Ac2Pr5YEr]
_chemical_formula_sum '[Ac8 Pr20 Y4 Er4]'
_cell_volume [1355.0026]
_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
[
  Ac  Ac0  8  0.0000  0.1162  0.5116  1
  Pr  Pr1  8  0.0000  0.2779  0.5607  1
  Pr  Pr2  4  0.0000  0.0028  0.2500  1
  Pr  Pr3  4  0.0000  0.3776  0.2500  1
  Pr  Pr4  4  0.0000  0.5000  0.0000  1
  Y  Y5  4  0.0000  0.3970  0.7500  1
  Er  Er6  4  0.0000  0.2175  0.2500  1
]