data_[K4Na4Zn4O8]
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
  Zn  1.6500  1.3500  0.8800
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [12.3884]
_cell_length_b [3.4089]
_cell_length_c [8.4922]
_cell_angle_alpha [90.0000]
_cell_angle_beta [109.7114]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [KNaZnO2]
_chemical_formula_sum '[K4 Na4 Zn4 O8]'
_cell_volume [337.6212]
_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  0.1839  0.5000  0.6380  1.0
  Na  Na1  4  0.1614  0.5000  0.0313  1.0
  Zn  Zn2  4  0.0271  0.0000  0.2394  1.0
  O  O3  4  0.1157  0.5000  0.2861  1.0
  O  O4  4  0.1335  0.0000  0.8437  1.0
]