data_[K12Rb4O4]
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 [P2_1/c]
_cell_length_a [10.8353]
_cell_length_b [7.7677]
_cell_length_c [15.6124]
_cell_angle_alpha [90.0000]
_cell_angle_beta [132.6810]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [14]
_chemical_formula_structural [K3RbO]
_chemical_formula_sum '[K12 Rb4 O4]'
_cell_volume [965.9844]
_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
[
  K  K0  4  0.0042  0.7471  0.2170  1.0
  K  K1  4  0.2148  0.5917  0.0173  1.0
  Rb  Rb2  4  0.2515  0.0888  0.2050  1.0
  K  K3  4  0.4962  0.2151  0.5287  1.0
  O  O4  4  0.2385  0.5020  0.8695  1.0
]