data_[Ac4La4Pm20Nd8]
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
  Pm  1.1300  1.8500  1.1100
  Nd  1.1400  1.8500  1.2765
]
_symmetry_space_group_name_H-M [I4/mcm]
_cell_length_a [9.0948]
_cell_length_b [9.0948]
_cell_length_c [15.9465]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [140]
_chemical_formula_structural [AcLaPm5Nd2]
_chemical_formula_sum '[Ac4 La4 Pm20 Nd8]'
_cell_volume [1319.0301]
_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
[
  La  La0  4  0.0000  0.0000  0.2500  1
  Ac  Ac1  4  0.0000  0.5000  0.2500  1
  Pm  Pm2  16  0.2095  0.2905  0.3691  1
  Pm  Pm3  4  0.0000  0.0000  0.0000  1
  Nd  Nd4  8  0.1151  0.3849  0.0000  1
]