data_[Rb4Tl4Pb2O12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Tl  1.6200  1.9000  1.3325
  Pb  2.3300  1.8000  1.1225
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [6.0244]
_cell_length_b [10.2968]
_cell_length_c [7.0052]
_cell_angle_alpha [90.0000]
_cell_angle_beta [107.5641]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Rb2Tl2PbO6]
_chemical_formula_sum '[Rb4 Tl4 Pb2 O12]'
_cell_volume [414.2891]
_cell_formula_units_Z [2]
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
[
  Rb  Rb0  4  0.0000  0.1705  0.0000  1.0
  Tl  Tl1  4  0.0000  0.3343  0.5000  1.0
  Pb  Pb2  2  0.0000  0.0000  0.5000  1.0
  O  O3  8  0.2182  0.1627  0.6767  1.0
  O  O4  4  0.2413  0.5000  0.6734  1.0
]