data_[Tb8Bi8O4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tb  1.1000  1.7500  0.9815
  Bi  2.0200  1.6000  1.0350
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [13.5519]
_cell_length_b [4.1191]
_cell_length_c [11.4701]
_cell_angle_alpha [90.0000]
_cell_angle_beta [123.9302]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Tb2Bi2O]
_chemical_formula_sum '[Tb8 Bi8 O4]'
_cell_volume [531.2562]
_cell_formula_units_Z [4]
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  4  0.0333  0.5000  0.1943  1
  Tb  Tb1  4  0.1962  0.5000  0.5787  1
  Bi  Bi2  4  0.0521  0.0000  0.6631  1
  Bi  Bi3  4  0.1390  0.0000  0.0666  1
  O  O4  4  0.2121  0.5000  0.3935  1
]