data_[K4Na8Ag4Br16]
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
  Ag  1.9300  1.6000  1.0867
  Br  2.9600  1.1500  0.8825
]
_symmetry_space_group_name_H-M [Cmcm]
_cell_length_a [4.3818]
_cell_length_b [14.8046]
_cell_length_c [15.3090]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [KNa2AgBr4]
_chemical_formula_sum '[K4 Na8 Ag4 Br16]'
_cell_volume [993.1085]
_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  4  0.0000  0.1325  0.7500  1.0
  Na  Na1  8  0.0000  0.3756  0.5508  1.0
  Ag  Ag2  4  0.0000  0.1451  0.2500  1.0
  Br  Br3  8  0.0000  0.2604  0.1132  1.0
  Br  Br4  4  0.0000  0.0000  0.0000  1.0
  Br  Br5  4  0.0000  0.4617  0.7500  1.0
]