data_[Ba4Ac8Pt4O20]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ba  0.8900  2.1500  1.4900
  Ac  1.1000  1.9500  1.2600
  Pt  2.2800  1.3500  0.8050
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [I4/mcm]
_cell_length_a [7.1288]
_cell_length_b [7.1288]
_cell_length_c [12.6931]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [140]
_chemical_formula_structural [BaAc2PtO5]
_chemical_formula_sum '[Ba4 Ac8 Pt4 O20]'
_cell_volume [645.0575]
_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
[
  Ba  Ba0  4  0.0000  0.0000  0.2500  1
  Ac  Ac1  8  0.1753  0.6753  0.5000  1
  Pt  Pt2  4  0.0000  0.5000  0.2500  1
  O  O3  16  0.1364  0.3636  0.3783  1
  O  O4  4  0.0000  0.0000  0.0000  1
]