data_[K6Rb4Na4]
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 [15.3639]
_cell_length_b [5.9208]
_cell_length_c [11.3711]
_cell_angle_alpha [90.0000]
_cell_angle_beta [111.0465]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [K3(RbNa)2]
_chemical_formula_sum '[K6 Rb4 Na4]'
_cell_volume [965.3840]
_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  0.1289  0.5000  0.4390  1.0
  Rb  Rb1  4  0.1398  0.0000  0.7914  1.0
  K  K2  2  0.0000  0.5000  0.0000  1.0
  Na  Na3  4  0.1563  0.0000  0.1996  1.0
]