data_[Ba8Cu4Pb4O20]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ba  0.8900  2.1500  1.4900
  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 [Cmc2_1]
_cell_length_a [3.5536]
_cell_length_b [15.9470]
_cell_length_c [10.7478]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [36]
_chemical_formula_structural [Ba2CuPbO5]
_chemical_formula_sum '[Ba8 Cu4 Pb4 O20]'
_cell_volume [609.0781]
_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  0.1176  0.7007  1.0
  Ba  Ba1  4  0.0000  0.1212  0.3123  1.0
  Cu  Cu2  4  0.0000  0.4552  0.4623  1.0
  Pb  Pb3  4  0.0000  0.2127  0.0102  1.0
  O  O4  4  0.0000  0.0655  0.0148  1.0
  O  O5  4  0.0000  0.2946  0.6465  1.0
  O  O6  4  0.0000  0.2981  0.3732  1.0
  O  O7  4  0.0000  0.3476  0.0083  1.0
  O  O8  4  0.0000  0.4953  0.2956  1.0
]