data_[K20Rb16O24]
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 [Cmc2_1]
_cell_length_a [4.0343]
_cell_length_b [20.6485]
_cell_length_c [18.2636]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [36]
_chemical_formula_structural [K5Rb4O6]
_chemical_formula_sum '[K20 Rb16 O24]'
_cell_volume [1521.3936]
_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
[
  Rb  Rb0  4  0.0000  0.0028  0.8469  1
  Rb  Rb1  4  0.0000  0.0276  0.0293  1
  K  K2  4  0.0000  0.1347  0.6168  1
  Rb  Rb3  4  0.0000  0.1810  0.2827  1
  Rb  Rb4  4  0.0000  0.1860  0.9510  1
  K  K5  4  0.0000  0.2916  0.6165  1
  K  K6  4  0.0000  0.3526  0.2783  1
  K  K7  4  0.0000  0.3620  0.9614  1
  K  K8  4  0.0000  0.4452  0.6811  1
  O  O9  4  0.0000  0.1263  0.1287  1
  O  O10  4  0.0000  0.2155  0.7399  1
  O  O11  4  0.0000  0.2175  0.4924  1
  O  O12  4  0.0000  0.4142  0.8254  1
  O  O13  4  0.0000  0.4145  0.4079  1
  O  O14  4  0.0000  0.4440  0.0974  1
]