data_[K4Rb14Na4]
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 [Imm2]
_cell_length_a [4.9176]
_cell_length_b [24.6803]
_cell_length_c [14.2543]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [44]
_chemical_formula_structural [K2Rb7Na2]
_chemical_formula_sum '[K4 Rb14 Na4]'
_cell_volume [1730.0021]
_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  0.0000  0.1505  0.2882  1.0
  Rb  Rb1  4  0.0000  0.1696  0.8814  1.0
  Rb  Rb2  4  0.0000  0.3517  0.0904  1.0
  K  K3  2  0.0000  0.0000  0.7115  1.0
  Rb  Rb4  2  0.0000  0.5000  0.5394  1.0
  K  K5  2  0.0000  0.5000  0.8934  1.0
  Na  Na6  4  0.0000  0.2809  0.5948  1.0
]