data_[K2Rb4O2]
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 [P2_1/m]
_cell_length_a [3.7576]
_cell_length_b [13.7561]
_cell_length_c [8.0366]
_cell_angle_alpha [90.0000]
_cell_angle_beta [103.2768]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [KRb2O]
_chemical_formula_sum '[K2 Rb4 O2]'
_cell_volume [404.3119]
_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
[
  Rb  Rb0  4  0.1309  0.1220  0.2501  1.0
  K  K1  2  0.3173  0.2500  0.6242  1.0
  O  O2  2  0.3022  0.7500  0.6160  1.0
]