data_[Ag36Pb3O21]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ag  1.9300  1.6000  1.0867
  Pb  2.3300  1.8000  1.1225
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [R-3]
_cell_length_a [11.7839]
_cell_length_b [11.7839]
_cell_length_c [8.1943]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [148]
_chemical_formula_structural [Ag12PbO7]
_chemical_formula_sum '[Ag36 Pb3 O21]'
_cell_volume [985.4266]
_cell_formula_units_Z [3]
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
[
  Ag  Ag0  18  0.0090  0.5888  0.3481  1.0
  Ag  Ag1  18  0.0396  0.8465  0.3645  1.0
  Pb  Pb2  3  0.0000  0.0000  0.0000  1.0
  O  O3  18  0.0191  0.1846  0.1526  1.0
  O  O4  3  0.0000  0.0000  0.5000  1.0
]