data_[K2Rb2Tl4F16]
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
  Tl  1.6200  1.9000  1.3325
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [I-4]
_cell_length_a [6.1049]
_cell_length_b [6.1049]
_cell_length_c [11.6817]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [82]
_chemical_formula_structural [KRbTl2F8]
_chemical_formula_sum '[K2 Rb2 Tl4 F16]'
_cell_volume [435.3757]
_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  0.0000  0.0000  0.0000  1.0
  K  K1  2  0.0000  0.5000  0.7500  1.0
  Tl  Tl2  2  0.0000  0.0000  0.5000  1.0
  Tl  Tl3  2  0.0000  0.5000  0.2500  1.0
  F  F4  8  0.1968  0.2172  0.6008  1.0
  F  F5  8  0.2098  0.2897  0.3472  1.0
]