data_[K3Na6Cr3Br18]
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
  Cr  1.6600  1.4000  0.9400
  Br  2.9600  1.1500  0.8825
]
_symmetry_space_group_name_H-M [R3]
_cell_length_a [7.3970]
_cell_length_b [7.3970]
_cell_length_c [19.9755]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [146]
_chemical_formula_structural [KNa2CrBr6]
_chemical_formula_sum '[K3 Na6 Cr3 Br18]'
_cell_volume [946.5509]
_cell_formula_units_Z [3]
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  3  0.0000  0.0000  0.8134  1.0
  Na  Na1  3  0.0000  0.0000  0.0063  1.0
  Na  Na2  3  0.0000  0.0000  0.5236  1.0
  Cr  Cr3  3  0.0000  0.0000  0.3290  1.0
  Br  Br4  9  0.0510  0.3759  0.9237  1.0
  Br  Br5  9  0.0710  0.6875  0.0724  1.0
]