data_[K4Rb4Ag4Br16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Rb  0.8200  2.3500  1.6600
  Ag  1.9300  1.6000  1.0867
  Br  2.9600  1.1500  0.8825
]
_symmetry_space_group_name_H-M [Cmcm]
_cell_length_a [7.5959]
_cell_length_b [17.1602]
_cell_length_c [7.6275]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [KRbAgBr4]
_chemical_formula_sum '[K4 Rb4 Ag4 Br16]'
_cell_volume [994.2187]
_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
[
  Rb  Rb0  4  0.0000  0.1095  0.2500  1.0
  K  K1  4  0.0000  0.3864  0.2500  1.0
  Ag  Ag2  4  0.0000  0.2519  0.7500  1.0
  Br  Br3  8  0.2500  0.2500  0.0000  1.0
  Br  Br4  4  0.0000  0.0896  0.7500  1.0
  Br  Br5  4  0.0000  0.4151  0.7500  1.0
]