data_[K4Na8Mg4I24]
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
  Mg  1.3100  1.5000  0.8600
  I  2.6600  1.4000  1.2733
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [14.8644]
_cell_length_b [17.5799]
_cell_length_c [8.8946]
_cell_angle_alpha [90.0000]
_cell_angle_beta [118.2568]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [KNa2MgI6]
_chemical_formula_sum '[K4 Na8 Mg4 I24]'
_cell_volume [2047.3096]
_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  4  0.0000  0.1050  0.7500  1
  Na  Na1  8  0.1294  0.4023  0.6007  1
  Mg  Mg2  4  0.0000  0.1531  0.2500  1
  I  I3  8  0.1047  0.4346  0.9344  1
  I  I4  8  0.1070  0.2285  0.5536  1
  I  I5  8  0.1349  0.0594  0.2027  1
]