data_[K8Rb4Na4Br16]
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
  Na  0.9300  1.8000  1.1600
  Br  2.9600  1.1500  0.8825
]
_symmetry_space_group_name_H-M [Cmcm]
_cell_length_a [4.7359]
_cell_length_b [15.9359]
_cell_length_c [16.4099]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [K2RbNaBr4]
_chemical_formula_sum '[K8 Rb4 Na4 Br16]'
_cell_volume [1238.4693]
_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  0.0000  0.3693  0.5469  1.0
  Rb  Rb1  4  0.0000  0.1245  0.7500  1.0
  Na  Na2  4  0.0000  0.1434  0.2500  1.0
  Br  Br3  8  0.0000  0.2624  0.1240  1.0
  Br  Br4  4  0.0000  0.0000  0.0000  1.0
  Br  Br5  4  0.0000  0.4542  0.7500  1.0
]