data_[Ac20Pb8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ac  1.1000  1.9500  1.2600
  Pb  2.3300  1.8000  1.1225
]
_symmetry_space_group_name_H-M [Cmcm]
_cell_length_a [5.1271]
_cell_length_b [43.4728]
_cell_length_c [5.1039]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [Ac5Pb2]
_chemical_formula_sum '[Ac20 Pb8]'
_cell_volume [1137.5995]
_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  0.0336  0.7500  1
  Ac  Ac1  4  0.0000  0.1745  0.2500  1
  Ac  Ac2  4  0.0000  0.2501  0.7500  1
  Ac  Ac3  4  0.0000  0.3887  0.2500  1
  Ac  Ac4  4  0.0000  0.4611  0.7500  1
  Pb  Pb5  4  0.0000  0.0963  0.2500  1
  Pb  Pb6  4  0.0000  0.3098  0.2500  1
]