data_[Tl12Ag4O8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tl  1.6200  1.9000  1.3325
  Ag  1.9300  1.6000  1.0867
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Ibam]
_cell_length_a [6.2985]
_cell_length_b [12.3677]
_cell_length_c [6.8415]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [72]
_chemical_formula_structural [Tl3AgO2]
_chemical_formula_sum '[Tl12 Ag4 O8]'
_cell_volume [532.9364]
_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
[
  Tl  Tl0  8  0.0000  0.2237  0.2500  1
  Tl  Tl1  4  0.0000  0.5000  0.2500  1
  Ag  Ag2  4  0.0000  0.0000  0.0000  1
  O  O3  8  0.2350  0.1174  0.0000  1
]