data_[K2Na2Co2I8]
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
  Co  1.8800  1.3500  0.7683
  I  2.6600  1.4000  1.2733
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [7.6002]
_cell_length_b [8.2002]
_cell_length_c [9.4539]
_cell_angle_alpha [90.0000]
_cell_angle_beta [107.3506]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [KNaCoI4]
_chemical_formula_sum '[K2 Na2 Co2 I8]'
_cell_volume [562.3879]
_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
[
  K  K0  2  0.2346  0.2500  0.0584  1.0
  Na  Na1  2  0.2321  0.2500  0.5590  1.0
  Co  Co2  2  0.2240  0.7500  0.3159  1.0
  I  I3  4  0.0017  0.5029  0.2687  1.0
  I  I4  2  0.4181  0.7500  0.1336  1.0
  I  I5  2  0.4359  0.7500  0.5835  1.0
]