data_[Na6Cd3Fe3F18]
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
  Fe  1.8300  1.4000  0.8525
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [R3]
_cell_length_a [5.7309]
_cell_length_b [5.7309]
_cell_length_c [14.9310]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [146]
_chemical_formula_structural [Na2CdFeF6]
_chemical_formula_sum '[Na6 Cd3 Fe3 F18]'
_cell_volume [424.6854]
_cell_formula_units_Z [3]
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  3  0.0000  0.0000  0.4686  1.0
  Na  Na1  3  0.0000  0.0000  0.9714  1.0
  Cd  Cd2  3  0.0000  0.0000  0.1844  1.0
  Fe  Fe3  3  0.0000  0.0000  0.6811  1.0
  F  F4  9  0.0504  0.3426  0.7519  1.0
  F  F5  9  0.0626  0.6906  0.2588  1.0
]