data_[K2Sm2Ag4F16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Sm  1.1700  1.8500  1.2290
  Ag  1.9300  1.6000  1.0867
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [I-4]
_cell_length_a [6.0584]
_cell_length_b [6.0584]
_cell_length_c [10.4414]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [82]
_chemical_formula_structural [KSmAg2F8]
_chemical_formula_sum '[K2 Sm2 Ag4 F16]'
_cell_volume [383.2427]
_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
[
  K  K0  2  0.0000  0.0000  0.0000  1
  Sm  Sm1  2  0.0000  0.5000  0.2500  1
  Ag  Ag2  2  0.0000  0.0000  0.5000  1
  Ag  Ag3  2  0.0000  0.5000  0.7500  1
  F  F4  8  0.1110  0.3191  0.4429  1
  F  F5  8  0.1863  0.7892  0.7936  1
]