data_[Sr4Fe6Si4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sr  0.9500  2.0000  1.3200
  Fe  1.8300  1.4000  0.8525
  Si  1.9000  1.1000  0.5400
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [11.3928]
_cell_length_b [3.9995]
_cell_length_c [7.0763]
_cell_angle_alpha [90.0000]
_cell_angle_beta [124.0166]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Sr2Fe3Si2]
_chemical_formula_sum '[Sr4 Fe6 Si4]'
_cell_volume [267.2582]
_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
[
  Sr  Sr0  4  0.1390  0.5000  0.7621  1
  Fe  Fe1  4  0.1192  0.5000  0.2075  1
  Fe  Fe2  2  0.0000  0.0000  0.0000  1
  Si  Si3  4  0.1533  0.0000  0.4158  1
]