data_[K16Rb4Na6]
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 [19.3774]
_cell_length_b [10.6224]
_cell_length_c [9.0110]
_cell_angle_alpha [90.0000]
_cell_angle_beta [101.3194]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [K8Rb2Na3]
_chemical_formula_sum '[K16 Rb4 Na6]'
_cell_volume [1818.7029]
_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
[
  K  K0  8  0.1012  0.3080  0.4170  1
  K  K1  4  0.0961  0.5000  0.9119  1
  K  K2  4  0.1853  0.0000  0.7694  1
  Rb  Rb3  4  0.2030  0.0000  0.2488  1
  Na  Na4  4  0.0000  0.1621  0.0000  1
  Na  Na5  2  0.0000  0.0000  0.5000  1
]