data_[Sm4Sn4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sm  1.1700  1.8500  1.2290
  Sn  1.9600  1.4500  0.8300
]
_symmetry_space_group_name_H-M [P2_13]
_cell_length_a [6.1820]
_cell_length_b [6.1820]
_cell_length_c [6.1820]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [198]
_chemical_formula_structural [SmSn]
_chemical_formula_sum '[Sm4 Sn4]'
_cell_volume [236.2584]
_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
[
  Sm  Sm0  4  0.1546  0.1546  0.1546  1
  Sn  Sn1  4  0.1578  0.3422  0.6578  1
]