data_[Na3Sn4Bi2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Sn  1.9600  1.4500  0.8300
  Bi  2.0200  1.6000  1.0350
]
_symmetry_space_group_name_H-M [P-1]
_cell_length_a [5.7439]
_cell_length_b [6.0524]
_cell_length_c [9.0249]
_cell_angle_alpha [99.1902]
_cell_angle_beta [99.2986]
_cell_angle_gamma [116.8859]
_symmetry_Int_Tables_number [2]
_chemical_formula_structural [Na3(Sn2Bi)2]
_chemical_formula_sum '[Na3 Sn4 Bi2]'
_cell_volume [266.3234]
_cell_formula_units_Z [1]
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
[
  Na  Na0  2  0.4383  0.8937  0.6842  1.0
  Na  Na1  1  0.0000  0.0000  0.0000  1.0
  Sn  Sn2  2  0.1265  0.2559  0.6428  1.0
  Sn  Sn3  2  0.3051  0.6217  0.9885  1.0
  Bi  Bi4  2  0.2443  0.4801  0.3272  1.0
]