data_[K8Rb4Na4Cl16]
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
  Cl  3.1600  1.0000  0.7800
]
_symmetry_space_group_name_H-M [Cmcm]
_cell_length_a [4.5030]
_cell_length_b [15.1631]
_cell_length_c [15.5885]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [K2RbNaCl4]
_chemical_formula_sum '[K8 Rb4 Na4 Cl16]'
_cell_volume [1064.3758]
_cell_formula_units_Z [4]
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  0.0000  0.3691  0.5452  1.0
  Rb  Rb1  4  0.0000  0.1231  0.7500  1.0
  Na  Na2  4  0.0000  0.1435  0.2500  1.0
  Cl  Cl3  8  0.0000  0.2612  0.1247  1.0
  Cl  Cl4  4  0.0000  0.0000  0.0000  1.0
  Cl  Cl5  4  0.0000  0.4516  0.7500  1.0
]