data_[K4Cu8Se4O24]
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
  Se  2.5500  1.1500  1.0133
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [8.7040]
_cell_length_b [11.3499]
_cell_length_c [7.2887]
_cell_angle_alpha [90.0000]
_cell_angle_beta [108.8990]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [KCu2SeO6]
_chemical_formula_sum '[K4 Cu8 Se4 O24]'
_cell_volume [681.2286]
_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  0.2059  0.2500  1.0
  Cu  Cu1  8  0.1352  0.4853  0.1757  1.0
  Se  Se2  4  0.0000  0.1122  0.7500  1.0
  O  O3  8  0.0809  0.1938  0.9436  1.0
  O  O4  8  0.0921  0.4684  0.4140  1.0
  O  O5  8  0.1371  0.0122  0.7150  1.0
]