data_[Tb2Ta2O8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tb  1.1000  1.7500  0.9815
  Ta  1.5000  1.4500  0.8200
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [P2/c]
_cell_length_a [5.1711]
_cell_length_b [5.5351]
_cell_length_c [5.3630]
_cell_angle_alpha [90.0000]
_cell_angle_beta [96.6559]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [13]
_chemical_formula_structural [TbTaO4]
_chemical_formula_sum '[Tb2 Ta2 O8]'
_cell_volume [152.4694]
_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
[
  Tb  Tb0  2  0.0000  0.2334  0.2500  1.0
  Ta  Ta1  2  0.5000  0.3079  0.7500  1.0
  O  O2  4  0.2505  0.0866  0.6020  1.0
  O  O3  4  0.2694  0.4359  0.9944  1.0
]