data_[Ac8Pr4Nd20Er4]
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
  Nd  1.1400  1.8500  1.2765
  Er  1.2400  1.7500  1.0300
]
_symmetry_space_group_name_H-M [Cmc2_1]
_cell_length_a [5.8729]
_cell_length_b [20.7991]
_cell_length_c [10.9759]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [36]
_chemical_formula_structural [Ac2PrNd5Er]
_chemical_formula_sum '[Ac8 Pr4 Nd20 Er4]'
_cell_volume [1340.7217]
_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  0.1144  0.7317  1
  Ac  Ac1  4  0.0000  0.1170  0.3161  1
  Pr  Pr2  4  0.0000  0.4089  0.4664  1
  Nd  Nd3  4  0.0000  0.0181  0.0199  1
  Nd  Nd4  4  0.0000  0.2809  0.3138  1
  Nd  Nd5  4  0.0000  0.2941  0.7045  1
  Nd  Nd6  4  0.0000  0.3848  0.0191  1
  Nd  Nd7  4  0.0000  0.4843  0.7427  1
  Er  Er8  4  0.0000  0.2055  0.0098  1
]