data_[Cs8K4Ag4Br16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Cs  0.7900  2.6000  1.8100
  K  0.8200  2.2000  1.5200
  Ag  1.9300  1.6000  1.0867
  Br  2.9600  1.1500  0.8825
]
_symmetry_space_group_name_H-M [Cmcm]
_cell_length_a [4.8086]
_cell_length_b [15.4959]
_cell_length_c [18.3645]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [Cs2KAgBr4]
_chemical_formula_sum '[Cs8 K4 Ag4 Br16]'
_cell_volume [1368.4045]
_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
[
  Cs  Cs0  8  0.0000  0.3577  0.5592  1
  K  K1  4  0.0000  0.1100  0.7500  1
  Ag  Ag2  4  0.0000  0.1730  0.2500  1
  Br  Br3  8  0.0000  0.2934  0.1415  1
  Br  Br4  4  0.0000  0.0000  0.0000  1
  Br  Br5  4  0.0000  0.4232  0.7500  1
]