data_[Cs4Ac2Pb4O8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Cs  0.7900  2.6000  1.8100
  Ac  1.1000  1.9500  1.2600
  Pb  2.3300  1.8000  1.1225
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [19.4637]
_cell_length_b [3.8739]
_cell_length_c [7.4109]
_cell_angle_alpha [90.0000]
_cell_angle_beta [101.5599]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Cs2Ac(PbO2)2]
_chemical_formula_sum '[Cs4 Ac2 Pb4 O8]'
_cell_volume [547.4545]
_cell_formula_units_Z [2]
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
[
  Cs  Cs0  4  0.1293  0.0000  0.4956  1
  Ac  Ac1  2  0.0000  0.0000  0.0000  1
  Pb  Pb2  4  0.1622  0.5000  0.0139  1
  O  O3  4  0.0706  0.5000  0.1674  1
  O  O4  4  0.1088  0.0000  0.8659  1
]