data_[Ba4F8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ba  0.8900  2.1500  1.4900
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [Pnma]
_cell_length_a [6.7996]
_cell_length_b [4.1105]
_cell_length_c [8.0456]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [62]
_chemical_formula_structural [BaF2]
_chemical_formula_sum '[Ba4 F8]'
_cell_volume [224.8686]
_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  0.2495  0.7500  0.1138  1.0
  F  F1  4  0.0276  0.2500  0.3327  1.0
  F  F2  4  0.1427  0.2500  0.9294  1.0
]