data_[Cs4Rb4Cu2O4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Cs  0.7900  2.6000  1.8100
  Rb  0.8200  2.3500  1.6600
  Cu  1.9000  1.3500  0.8200
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [14.0153]
_cell_length_b [4.3469]
_cell_length_c [11.4464]
_cell_angle_alpha [90.0000]
_cell_angle_beta [125.2166]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Cs2Rb2CuO2]
_chemical_formula_sum '[Cs4 Rb4 Cu2 O4]'
_cell_volume [569.7184]
_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
[
  Cs  Cs0  4  0.0375  0.5000  0.2764  1.0
  Rb  Rb1  4  0.2334  0.5000  0.1180  1.0
  Cu  Cu2  2  0.0000  0.0000  0.0000  1.0
  O  O3  4  0.0922  0.0000  0.9345  1.0
]