data_[Na6Bi8Sb4]
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 [C2/m]
_cell_length_a [11.2419]
_cell_length_b [5.8697]
_cell_length_c [9.0911]
_cell_angle_alpha [90.0000]
_cell_angle_beta [106.8271]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Na3(Bi2Sb)2]
_chemical_formula_sum '[Na6 Bi8 Sb4]'
_cell_volume [574.2078]
_cell_formula_units_Z [2]
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  4  0.0422  0.5000  0.3205  1.0
  Na  Na1  2  0.0000  0.0000  0.0000  1.0
  Bi  Bi2  4  0.1473  0.0000  0.6248  1.0
  Bi  Bi3  4  0.1966  0.5000  0.0146  1.0
  Sb  Sb4  4  0.2433  0.0000  0.3231  1.0
]