data_[Ba8Tb4Fe4O20]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ba  0.8900  2.1500  1.4900
  Tb  1.1000  1.7500  0.9815
  Fe  1.8300  1.4000  0.8525
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Cmc2_1]
_cell_length_a [3.5861]
_cell_length_b [15.0845]
_cell_length_c [11.5535]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [36]
_chemical_formula_structural [Ba2TbFeO5]
_chemical_formula_sum '[Ba8 Tb4 Fe4 O20]'
_cell_volume [624.9924]
_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
[
  Ba  Ba0  4  0.0000  0.1051  0.6718  1.0
  Ba  Ba1  4  0.0000  0.1385  0.3272  1.0
  Tb  Tb2  4  0.0000  0.2038  0.0333  1.0
  Fe  Fe3  4  0.0000  0.4518  0.4333  1.0
  O  O4  4  0.0000  0.0394  0.0059  1.0
  O  O5  4  0.0000  0.2892  0.6570  1.0
  O  O6  4  0.0000  0.3259  0.4014  1.0
  O  O7  4  0.0000  0.3462  0.0056  1.0
  O  O8  4  0.0000  0.4957  0.7886  1.0
]