data_[K2Rb2Na12]
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 [Amm2]
_cell_length_a [6.4085]
_cell_length_b [8.4778]
_cell_length_c [14.0936]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [38]
_chemical_formula_structural [KRbNa6]
_chemical_formula_sum '[K2 Rb2 Na12]'
_cell_volume [765.7118]
_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  2  0.0000  0.0000  0.0924  1.0
  Rb  Rb1  2  0.5000  0.0000  0.4063  1.0
  Na  Na2  4  0.0000  0.2152  0.8289  1.0
  Na  Na3  4  0.5000  0.2194  0.6688  1.0
  Na  Na4  2  0.0000  0.0000  0.5967  1.0
  Na  Na5  2  0.5000  0.0000  0.9090  1.0
]