data_[Ba2Ta2Tl2O8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ba  0.8900  2.1500  1.4900
  Ta  1.5000  1.4500  0.8200
  Tl  1.6200  1.9000  1.3325
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [7.1387]
_cell_length_b [6.3419]
_cell_length_c [8.0183]
_cell_angle_alpha [90.0000]
_cell_angle_beta [110.0863]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [BaTaTlO4]
_chemical_formula_sum '[Ba2 Ta2 Tl2 O8]'
_cell_volume [340.9284]
_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
[
  Ba  Ba0  2  0.2203  0.7500  0.6246  1.0
  Ta  Ta1  2  0.2779  0.2500  0.3642  1.0
  Tl  Tl2  2  0.2172  0.7500  0.1413  1.0
  O  O3  4  0.1074  0.0167  0.3491  1.0
  O  O4  2  0.3917  0.2500  0.1895  1.0
  O  O5  2  0.4874  0.2500  0.5800  1.0
]