data_[K6Na26]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Na  0.9300  1.8000  1.1600
]
_symmetry_space_group_name_H-M [Amm2]
_cell_length_a [9.5228]
_cell_length_b [11.9935]
_cell_length_c [12.1417]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [38]
_chemical_formula_structural [K3Na13]
_chemical_formula_sum '[K6 Na26]'
_cell_volume [1386.7362]
_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  4  0.2616  0.0000  0.9914  1.0
  K  K1  2  0.0000  0.0000  0.2653  1.0
  Na  Na2  8  0.2674  0.2424  0.7484  1.0
  Na  Na3  4  0.0000  0.2342  0.5054  1.0
  Na  Na4  4  0.2572  0.0000  0.5104  1.0
  Na  Na5  4  0.5000  0.2260  0.4975  1.0
  Na  Na6  2  0.0000  0.0000  0.7310  1.0
  Na  Na7  2  0.5000  0.0000  0.2734  1.0
  Na  Na8  2  0.5000  0.0000  0.7272  1.0
]