data_[K2Rb2Cl4]
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
  Cl  3.1600  1.0000  0.7800
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [6.4717]
_cell_length_b [6.4877]
_cell_length_c [6.4890]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0043]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [KRbCl2]
_chemical_formula_sum '[K2 Rb2 Cl4]'
_cell_volume [272.4526]
_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  2  0.0042  0.7500  0.7559  1
  K  K1  2  0.4962  0.7500  0.2554  1
  Cl  Cl2  2  0.0042  0.2500  0.7437  1
  Cl  Cl3  2  0.4959  0.2500  0.2451  1
]