data_[Tb8Se6O8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tb  1.1000  1.7500  0.9815
  Se  2.5500  1.1500  1.0133
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Amm2]
_cell_length_a [8.3220]
_cell_length_b [3.8864]
_cell_length_c [12.5982]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [38]
_chemical_formula_structural [Tb4Se3O4]
_chemical_formula_sum '[Tb8 Se6 O8]'
_cell_volume [407.4558]
_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  4  0.2401  0.0000  0.6814  1.0
  Tb  Tb1  2  0.0000  0.0000  0.0064  1.0
  Tb  Tb2  2  0.5000  0.0000  0.0176  1.0
  Se  Se3  4  0.3466  0.0000  0.3544  1.0
  Se  Se4  2  0.0000  0.0000  0.3206  1.0
  O  O5  4  0.2455  0.0000  0.0875  1.0
  O  O6  2  0.0000  0.0000  0.5935  1.0
  O  O7  2  0.5000  0.0000  0.6145  1.0
]