data_[K6Ag2I8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Ag  1.9300  1.6000  1.0867
  I  2.6600  1.4000  1.2733
]
_symmetry_space_group_name_H-M [Pmn2_1]
_cell_length_a [11.6671]
_cell_length_b [9.7426]
_cell_length_c [7.1731]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [31]
_chemical_formula_structural [K3AgI4]
_chemical_formula_sum '[K6 Ag2 I8]'
_cell_volume [815.3584]
_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  4  0.2355  0.6681  0.0759  1.0
  K  K1  2  0.0000  0.8535  0.5732  1.0
  Ag  Ag2  2  0.0000  0.1821  0.9829  1.0
  I  I3  4  0.2225  0.3084  0.0764  1.0
  I  I4  2  0.0000  0.1992  0.5809  1.0
  I  I5  2  0.0000  0.8865  0.0736  1.0
]