data_[K4Rb24Na8]
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
  Na  0.9300  1.8000  1.1600
]
_symmetry_space_group_name_H-M [Immm]
_cell_length_a [12.5037]
_cell_length_b [14.6532]
_cell_length_c [15.1385]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [71]
_chemical_formula_structural [K(Rb3Na)2]
_chemical_formula_sum '[K4 Rb24 Na8]'
_cell_volume [2773.6762]
_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
[
  Rb  Rb0  8  0.0000  0.2907  0.3158  1.0
  Rb  Rb1  8  0.1932  0.2842  0.0000  1.0
  Rb  Rb2  8  0.2091  0.0000  0.2463  1.0
  K  K3  2  0.0000  0.0000  0.0000  1.0
  K  K4  2  0.0000  0.0000  0.5000  1.0
  Na  Na5  4  0.0000  0.5000  0.1168  1.0
  Na  Na6  4  0.1381  0.5000  0.5000  1.0
]