data_[Tl4As2Pb2O8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tl  1.6200  1.9000  1.3325
  As  2.1800  1.1500  0.6600
  Pb  2.3300  1.8000  1.1225
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Pmn2_1]
_cell_length_a [7.6996]
_cell_length_b [8.5397]
_cell_length_c [5.2294]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [31]
_chemical_formula_structural [Tl2AsPbO4]
_chemical_formula_sum '[Tl4 As2 Pb2 O8]'
_cell_volume [343.8441]
_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
[
  Tl  Tl0  4  0.2283  0.6321  0.5262  1
  As  As1  2  0.0000  0.8700  0.9926  1
  Pb  Pb2  2  0.0000  0.1516  0.5324  1
  O  O3  4  0.1847  0.7687  0.0832  1
  O  O4  2  0.0000  0.0624  0.0983  1
  O  O5  2  0.0000  0.8813  0.6580  1
]