data_[Cs4K16Rb4O4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Cs  0.7900  2.6000  1.8100
  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 [C2/m]
_cell_length_a [15.5265]
_cell_length_b [8.7709]
_cell_length_c [15.1434]
_cell_angle_alpha [90.0000]
_cell_angle_beta [106.2648]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [CsK4RbO]
_chemical_formula_sum '[Cs4 K16 Rb4 O4]'
_cell_volume [1979.7011]
_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
[
  Cs  Cs0  4  0.0308  0.0000  0.3505  1.0
  K  K1  8  0.2327  0.2836  0.2647  1.0
  K  K2  4  0.0042  0.5000  0.8283  1.0
  K  K3  4  0.1315  0.5000  0.4454  1.0
  Rb  Rb4  4  0.1556  0.0000  0.9875  1.0
  O  O5  4  0.1414  0.5000  0.2874  1.0
]