data_[Li2Fe2Br8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Li  0.9800  1.4500  0.9000
  Fe  1.8300  1.4000  0.8525
  Br  2.9600  1.1500  0.8825
]
_symmetry_space_group_name_H-M [I-4]
_cell_length_a [6.1481]
_cell_length_b [6.1481]
_cell_length_c [10.8397]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [82]
_chemical_formula_structural [LiFeBr4]
_chemical_formula_sum '[Li2 Fe2 Br8]'
_cell_volume [409.7276]
_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
[
  Li  Li0  2  0.0000  0.5000  0.2500  1
  Fe  Fe1  2  0.0000  0.0000  0.5000  1
  Br  Br2  8  0.2209  0.7741  0.3775  1
]