data_[K1Rb1Tl2F4]
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 [P2/m]
_cell_length_a [6.8798]
_cell_length_b [3.9698]
_cell_length_c [6.9481]
_cell_angle_alpha [90.0000]
_cell_angle_beta [109.2720]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [10]
_chemical_formula_structural [KRbTl2F4]
_chemical_formula_sum '[K1 Rb1 Tl2 F4]'
_cell_volume [179.1282]
_cell_formula_units_Z [1]
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  1  0.0000  0.5000  0.5000  1.0
  K  K1  1  0.5000  0.0000  0.5000  1.0
  Tl  Tl2  1  0.0000  0.0000  0.0000  1.0
  Tl  Tl3  1  0.5000  0.5000  0.0000  1.0
  F  F4  2  0.2554  0.0000  0.7446  1.0
  F  F5  2  0.2592  0.5000  0.2596  1.0
]