data_[Ac4Cu4Pb4O20]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ac  1.1000  1.9500  1.2600
  Cu  1.9000  1.3500  0.8200
  Pb  2.3300  1.8000  1.1225
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [6.9226]
_cell_length_b [10.0885]
_cell_length_c [7.4440]
_cell_angle_alpha [90.0000]
_cell_angle_beta [110.1749]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [AcCuPbO5]
_chemical_formula_sum '[Ac4 Cu4 Pb4 O20]'
_cell_volume [487.9818]
_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  0.3445  0.2500  1
  Cu  Cu1  4  0.0000  0.3203  0.7500  1
  Pb  Pb2  4  0.0000  0.0000  0.0000  1
  O  O3  8  0.1093  0.2029  0.6110  1
  O  O4  8  0.1621  0.4451  0.9347  1
  O  O5  4  0.0000  0.0978  0.2500  1
]