data_[K2Rb2Fe2F12]
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
  Fe  1.8300  1.4000  0.8525
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [P4_2nm]
_cell_length_a [5.5694]
_cell_length_b [5.5694]
_cell_length_c [11.3525]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [102]
_chemical_formula_structural [KRbFeF6]
_chemical_formula_sum '[K2 Rb2 Fe2 F12]'
_cell_volume [352.1332]
_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  2  0.0000  0.0000  0.6680  1.0
  Rb  Rb1  2  0.0000  0.0000  0.9976  1.0
  Fe  Fe2  2  0.0000  0.0000  0.3329  1.0
  F  F3  4  0.1642  0.8358  0.4564  1.0
  F  F4  4  0.1712  0.8288  0.2137  1.0
  F  F5  4  0.2292  0.2292  0.3306  1.0
]