data_[K4Ta2O2F10]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Ta  1.5000  1.4500  0.8200
  O  3.4400  0.6000  1.2600
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [I4mm]
_cell_length_a [5.8394]
_cell_length_b [5.8394]
_cell_length_c [9.6817]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [107]
_chemical_formula_structural [K2TaOF5]
_chemical_formula_sum '[K4 Ta2 O2 F10]'
_cell_volume [330.1336]
_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  4  0.0000  0.5000  0.2267  1.0
  Ta  Ta1  2  0.0000  0.0000  0.9862  1.0
  O  O2  2  0.0000  0.0000  0.8010  1.0
  F  F3  8  0.2353  0.2353  0.0130  1.0
  F  F4  2  0.0000  0.0000  0.2074  1.0
]