data_[Tm8Fe4Sn8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tm  1.2500  1.7500  1.0950
  Fe  1.8300  1.4000  0.8525
  Sn  1.9600  1.4500  0.8300
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [10.8204]
_cell_length_b [4.3930]
_cell_length_c [10.7930]
_cell_angle_alpha [90.0000]
_cell_angle_beta [116.3208]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Tm2FeSn2]
_chemical_formula_sum '[Tm8 Fe4 Sn8]'
_cell_volume [459.8395]
_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
[
  Tm  Tm0  4  0.0056  0.0000  0.1708  1
  Tm  Tm1  4  0.1864  0.0000  0.6243  1
  Fe  Fe2  4  0.2204  0.5000  0.8309  1
  Sn  Sn3  4  0.0269  0.5000  0.3788  1
  Sn  Sn4  4  0.1588  0.5000  0.0551  1
]