data_[Ba2Sr2Fe4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ba  0.8900  2.1500  1.4900
  Sr  0.9500  2.0000  1.3200
  Fe  1.8300  1.4000  0.8525
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [11.3590]
_cell_length_b [4.0260]
_cell_length_c [7.8494]
_cell_angle_alpha [90.0000]
_cell_angle_beta [130.7404]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [BaSrFe2]
_chemical_formula_sum '[Ba2 Sr2 Fe4]'
_cell_volume [271.9725]
_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
[
  Ba  Ba0  2  0.0000  0.5000  0.0000  1
  Sr  Sr1  2  0.0000  0.0000  0.5000  1
  Fe  Fe2  4  0.2499  0.0000  0.4270  1
]