data_[K2Na1Sb1F8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Na  0.9300  1.8000  1.1600
  Sb  2.0500  1.4500  0.8300
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [P2/m]
_cell_length_a [5.1811]
_cell_length_b [7.8714]
_cell_length_c [5.8736]
_cell_angle_alpha [90.0000]
_cell_angle_beta [93.0197]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [10]
_chemical_formula_structural [K2NaSbF8]
_chemical_formula_sum '[K2 Na1 Sb1 F8]'
_cell_volume [239.2061]
_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
[
  K  K0  2  0.5000  0.2714  0.5000  1
  Na  Na1  1  0.0000  0.5000  0.0000  1
  Sb  Sb2  1  0.0000  0.0000  0.0000  1
  F  F3  4  0.1935  0.1739  0.8554  1
  F  F4  2  0.2460  0.0000  0.2576  1
  F  F5  2  0.2674  0.5000  0.2830  1
]