data_[K8Rb4O1]
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 [Pmm2]
_cell_length_a [5.5377]
_cell_length_b [6.9033]
_cell_length_c [23.0115]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [25]
_chemical_formula_structural [K8Rb4O]
_chemical_formula_sum '[K8 Rb4 O1]'
_cell_volume [879.6946]
_cell_formula_units_Z [1]
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  1  0.0000  0.0000  0.2411  1
  K  K1  1  0.0000  0.0000  0.6418  1
  Rb  Rb2  1  0.0000  0.0000  0.8644  1
  Rb  Rb3  1  0.0000  0.5000  0.0840  1
  K  K4  1  0.0000  0.5000  0.3935  1
  K  K5  1  0.0000  0.5000  0.7504  1
  K  K6  1  0.5000  0.0000  0.0650  1
  Rb  Rb7  1  0.5000  0.0000  0.4230  1
  K  K8  1  0.5000  0.0000  0.7504  1
  K  K9  1  0.5000  0.5000  0.2426  1
  Rb  Rb10  1  0.5000  0.5000  0.5671  1
  K  K11  1  0.5000  0.5000  0.9236  1
  O  O12  1  0.0000  0.0000  0.7501  1
]