data_[Na6Cd2Sb8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Cd  1.6900  1.5500  1.0900
  Sb  2.0500  1.4500  0.8300
]
_symmetry_space_group_name_H-M [Immm]
_cell_length_a [3.3208]
_cell_length_b [6.6357]
_cell_length_c [20.2809]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [71]
_chemical_formula_structural [Na3CdSb4]
_chemical_formula_sum '[Na6 Cd2 Sb8]'
_cell_volume [446.9126]
_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  0.0000  0.0000  0.2313  1.0
  Na  Na1  2  0.0000  0.5000  0.0000  1.0
  Cd  Cd2  2  0.0000  0.5000  0.5000  1.0
  Sb  Sb3  8  0.0000  0.2300  0.3769  1.0
]