data_[Fe4Sn2O8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Fe  1.8300  1.4000  0.8525
  Sn  1.9600  1.4500  0.8300
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [11.1201]
_cell_length_b [3.2717]
_cell_length_c [5.3130]
_cell_angle_alpha [90.0000]
_cell_angle_beta [114.0270]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Fe2SnO4]
_chemical_formula_sum '[Fe4 Sn2 O8]'
_cell_volume [176.5424]
_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
[
  Fe  Fe0  4  0.1884  0.5000  0.6618  1.0
  Sn  Sn1  2  0.0000  0.0000  0.0000  1.0
  O  O2  4  0.1111  0.5000  0.9386  1.0
  O  O3  4  0.1352  0.0000  0.4037  1.0
]