data_[Tb4O8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tb  1.1000  1.7500  0.9815
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [6.7412]
_cell_length_b [3.8190]
_cell_length_c [6.2749]
_cell_angle_alpha [90.0000]
_cell_angle_beta [96.8787]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [TbO2]
_chemical_formula_sum '[Tb4 O8]'
_cell_volume [160.3826]
_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  0.1881  0.5000  0.7292  1.0
  O  O1  4  0.0892  0.0000  0.9390  1.0
  O  O2  4  0.1486  0.5000  0.3556  1.0
]