data_[Cs4K4Rb16O4]
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 [15.8612]
_cell_length_b [9.0533]
_cell_length_c [16.1526]
_cell_angle_alpha [90.0000]
_cell_angle_beta [109.7901]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [CsKRb4O]
_chemical_formula_sum '[Cs4 K4 Rb16 O4]'
_cell_volume [2182.4657]
_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  0.0226  0.0000  0.3578  1.0
  Rb  Rb1  8  0.2115  0.2789  0.2421  1.0
  Rb  Rb2  4  0.0371  0.5000  0.8396  1.0
  Rb  Rb3  4  0.1317  0.5000  0.4331  1.0
  K  K4  4  0.1384  0.0000  0.9710  1.0
  O  O5  4  0.1233  0.5000  0.2712  1.0
]