data_[Cs2K4Er2F12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Cs  0.7900  2.6000  1.8100
  K  0.8200  2.2000  1.5200
  Er  1.2400  1.7500  1.0300
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [P2_1/c]
_cell_length_a [6.5261]
_cell_length_b [6.9578]
_cell_length_c [11.3500]
_cell_angle_alpha [90.0000]
_cell_angle_beta [123.8152]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [14]
_chemical_formula_structural [CsK2ErF6]
_chemical_formula_sum '[Cs2 K4 Er2 F12]'
_cell_volume [428.1914]
_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
[
  Cs  Cs0  2  0.5000  0.0000  0.0000  1
  K  K1  4  0.2804  0.0325  0.2765  1
  Er  Er2  2  0.0000  0.0000  0.5000  1
  F  F3  4  0.0796  0.1161  0.6996  1
  F  F4  4  0.2486  0.7424  0.1106  1
  F  F5  4  0.3141  0.1449  0.5245  1
]