data_[K2Rb4Na6Br12]
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 [C2/m]
_cell_length_a [20.0381]
_cell_length_b [4.5379]
_cell_length_c [9.2208]
_cell_angle_alpha [90.0000]
_cell_angle_beta [104.4213]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [KRb2Na3Br6]
_chemical_formula_sum '[K2 Rb4 Na6 Br12]'
_cell_volume [812.0378]
_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
[
  Rb  Rb0  4  0.1667  0.0000  0.3323  1
  K  K1  2  0.0000  0.5000  0.0000  1
  Na  Na2  4  0.1658  0.0000  0.8349  1
  Na  Na3  2  0.0000  0.5000  0.5000  1
  Br  Br4  4  0.0076  0.0000  0.7389  1
  Br  Br5  4  0.1576  0.5000  0.6041  1
  Br  Br6  4  0.1721  0.5000  0.0609  1
]