data_Na2SnBi
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.41
_cell_length_b   4.96
_cell_length_c   6.6
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Na2SnBi
_chemical_formula_sum   'Na2 Sn1 Bi1'
_cell_volume   111.59
_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  Na1  1  0.71  0.48  0.96  1.0
  Na  Na2  1  0.71  0.48  0.65  1.0
  Sn  Sn3  1  0.0  0.0  0.0  1.0
  Bi  Bi0  1  0.0  0.0  0.3  1.0

data_Na2SnBi
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.41
_cell_length_b   4.96
_cell_length_c   6.6
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Na2SnBi
_chemical_formula_sum   'Na2 Sn1 Bi1'
_cell_volume   111.59
_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  1  0.71  0.48  0.65  1.0
  Na  Na1  1  0.71  0.48  0.96  1.0
  Sn  Sn2  1  0.0  0.0  0.0  1.0
  Bi  Bi3  1  0.0  0.0  0.3  1.0

Na Na Sn Bi