data_[Ac4La8Tb20Er4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ac  1.1000  1.9500  1.2600
  La  1.1000  1.9500  1.1720
  Tb  1.1000  1.7500  0.9815
  Er  1.2400  1.7500  1.0300
]
_symmetry_space_group_name_H-M [I4/mcm]
_cell_length_a [8.8242]
_cell_length_b [8.8242]
_cell_length_c [15.9530]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [140]
_chemical_formula_structural [AcLa2Tb5Er]
_chemical_formula_sum '[Ac4 La8 Tb20 Er4]'
_cell_volume [1242.1963]
_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
[
  Tb  Tb0  16  0.2118  0.2882  0.3631  1
  La  La1  8  0.1175  0.6175  0.5000  1
  Tb  Tb2  4  0.0000  0.0000  0.0000  1
  Ac  Ac3  4  0.0000  0.0000  0.2500  1
  Er  Er4  4  0.0000  0.5000  0.2500  1
]