data_[K8Rb10O2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Rb  0.8200  2.3500  1.6600
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [I4mm]
_cell_length_a [13.4562]
_cell_length_b [13.4562]
_cell_length_c [7.5596]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [107]
_chemical_formula_structural [K4Rb5O]
_chemical_formula_sum '[K8 Rb10 O2]'
_cell_volume [1368.8236]
_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  8  0.0000  0.3429  0.4961  1.0
  Rb  Rb1  8  0.1406  0.1406  0.9991  1.0
  Rb  Rb2  2  0.0000  0.0000  0.5799  1.0
  O  O3  2  0.0000  0.0000  0.9289  1.0
]