data_[Sr8Pb8O20]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sr  0.9500  2.0000  1.3200
  Pb  2.3300  1.8000  1.1225
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Ima2]
_cell_length_a [17.4506]
_cell_length_b [6.1353]
_cell_length_c [6.0253]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [46]
_chemical_formula_structural [Sr2Pb2O5]
_chemical_formula_sum '[Sr8 Pb8 O20]'
_cell_volume [645.0892]
_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
[
  Sr  Sr0  8  0.1140  0.5037  0.9878  1
  Pb  Pb1  4  0.0000  0.0000  0.0122  1
  Pb  Pb2  4  0.2500  0.0233  0.9636  1
  O  O3  8  0.0342  0.2367  0.7566  1
  O  O4  8  0.1195  0.5971  0.5593  1
  O  O5  4  0.2500  0.1195  0.5809  1
]