data_[K16Cu8O32]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Cu  1.9000  1.3500  0.8200
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Fd-3m]
_cell_length_a [9.6691]
_cell_length_b [9.6691]
_cell_length_c [9.6691]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [227]
_chemical_formula_structural [K2CuO4]
_chemical_formula_sum '[K16 Cu8 O32]'
_cell_volume [903.9666]
_cell_formula_units_Z [8]
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  16  0.1250  0.1250  0.1250  1
  Cu  Cu1  8  0.0000  0.0000  0.5000  1
  O  O2  32  0.1035  0.1035  0.3965  1
]