data_[K4Rb16Na2]
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 [C2/m]
_cell_length_a [27.2665]
_cell_length_b [8.0191]
_cell_length_c [8.2671]
_cell_angle_alpha [90.0000]
_cell_angle_beta [95.5406]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [K2Rb8Na]
_chemical_formula_sum '[K4 Rb16 Na2]'
_cell_volume [1799.1845]
_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
[
  Rb  Rb0  4  0.0422  0.0000  0.2532  1.0
  Rb  Rb1  4  0.0861  0.5000  0.5638  1.0
  Rb  Rb2  4  0.1437  0.0000  0.8143  1.0
  Rb  Rb3  4  0.1738  0.5000  0.1014  1.0
  K  K4  4  0.2286  0.0000  0.3634  1.0
  Na  Na5  2  0.0000  0.5000  0.0000  1.0
]