data_[Ta2Tl2O8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  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/c]
_cell_length_a [5.0259]
_cell_length_b [6.0209]
_cell_length_c [5.2953]
_cell_angle_alpha [90.0000]
_cell_angle_beta [92.3570]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [13]
_chemical_formula_structural [TaTlO4]
_chemical_formula_sum '[Ta2 Tl2 O8]'
_cell_volume [160.1008]
_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
[
  Ta  Ta0  2  0.0000  0.1684  0.7500  1.0
  Tl  Tl1  2  0.5000  0.3142  0.2500  1.0
  O  O2  4  0.2060  0.0970  0.4440  1.0
  O  O3  4  0.2531  0.3734  0.8945  1.0
]