data_[K8Na4Sm4F24]
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
  Sm  1.1700  1.8500  1.2290
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [Fm-3m]
_cell_length_a [9.0256]
_cell_length_b [9.0256]
_cell_length_c [9.0256]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [225]
_chemical_formula_structural [K2NaSmF6]
_chemical_formula_sum '[K8 Na4 Sm4 F24]'
_cell_volume [735.2362]
_cell_formula_units_Z [4]
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  8  0.2500  0.2500  0.2500  1.0
  Na  Na1  4  0.0000  0.0000  0.5000  1.0
  Sm  Sm2  4  0.0000  0.0000  0.0000  1.0
  F  F3  24  0.0000  0.0000  0.2479  1.0
]