data_[K8Na4Ge4I20]
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
  Ge  2.0100  1.2500  0.7700
  I  2.6600  1.4000  1.2733
]
_symmetry_space_group_name_H-M [Cmc2_1]
_cell_length_a [4.8874]
_cell_length_b [20.0961]
_cell_length_c [15.4948]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [36]
_chemical_formula_structural [K2NaGeI5]
_chemical_formula_sum '[K8 Na4 Ge4 I20]'
_cell_volume [1521.8677]
_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  0.1084  0.6645  1.0
  K  K1  4  0.0000  0.1434  0.3123  1.0
  Na  Na2  4  0.0000  0.2156  0.0359  1.0
  Ge  Ge3  4  0.0000  0.4615  0.4420  1.0
  I  I4  4  0.0000  0.0524  0.0497  1.0
  I  I5  4  0.0000  0.2803  0.6732  1.0
  I  I6  4  0.0000  0.3257  0.3919  1.0
  I  I7  4  0.0000  0.3728  0.9905  1.0
  I  I8  4  0.0000  0.4952  0.7639  1.0
]