data_[Na4Bi3Sb1]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Bi  2.0200  1.6000  1.0350
  Sb  2.0500  1.4500  0.8300
]
_symmetry_space_group_name_H-M [Pmm2]
_cell_length_a [4.4191]
_cell_length_b [5.1181]
_cell_length_c [11.6242]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [25]
_chemical_formula_structural [Na4Bi3Sb]
_chemical_formula_sum '[Na4 Bi3 Sb1]'
_cell_volume [262.9073]
_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  0.0000  0.0000  0.8731  1.0
  Na  Na1  1  0.0000  0.5000  0.3815  1.0
  Na  Na2  1  0.5000  0.0000  0.1159  1.0
  Na  Na3  1  0.5000  0.5000  0.6340  1.0
  Bi  Bi4  1  0.0000  0.0000  0.5868  1.0
  Bi  Bi5  1  0.0000  0.5000  0.0918  1.0
  Bi  Bi6  1  0.5000  0.0000  0.4020  1.0
  Sb  Sb7  1  0.5000  0.5000  0.9149  1.0
]