data_[K8Rb4]
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
]
_symmetry_space_group_name_H-M [Cm]
_cell_length_a [8.2807]
_cell_length_b [14.1770]
_cell_length_c [8.4113]
_cell_angle_alpha [90.0000]
_cell_angle_beta [106.1523]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [8]
_chemical_formula_structural [K2Rb]
_chemical_formula_sum '[K8 Rb4]'
_cell_volume [948.4769]
_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  0.4349  0.3368  0.8257  1.0
  Rb  Rb1  4  0.4418  0.1666  0.3263  1.0
  K  K2  2  0.4344  0.0000  0.8257  1.0
  K  K3  2  0.4415  0.5000  0.3256  1.0
]