data_[Ac4Nd8Ho20Er4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ac  1.1000  1.9500  1.2600
  Nd  1.1400  1.8500  1.2765
  Ho  1.2300  1.7500  1.0410
  Er  1.2400  1.7500  1.0300
]
_symmetry_space_group_name_H-M [I4/mcm]
_cell_length_a [8.8354]
_cell_length_b [8.8354]
_cell_length_c [15.5546]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [140]
_chemical_formula_structural [AcNd2Ho5Er]
_chemical_formula_sum '[Ac4 Nd8 Ho20 Er4]'
_cell_volume [1214.2553]
_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  4  0.0000  0.0000  0.2500  1
  Nd  Nd1  8  0.1168  0.6168  0.5000  1
  Ho  Ho2  16  0.2069  0.2931  0.3666  1
  Ho  Ho3  4  0.0000  0.0000  0.0000  1
  Er  Er4  4  0.0000  0.5000  0.2500  1
]