data_[K4N2O4F4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  N  3.0400  0.6500  0.6300
  O  3.4400  0.6000  1.2600
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [8.4491]
_cell_length_b [4.0285]
_cell_length_c [7.9210]
_cell_angle_alpha [90.0000]
_cell_angle_beta [100.5858]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [K2N(OF)2]
_chemical_formula_sum '[K4 N2 O4 F4]'
_cell_volume [265.0193]
_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  0.1817  0.5000  0.1689  1
  N  N1  2  0.0000  0.0000  0.5000  1
  O  O2  4  0.1301  0.0000  0.4566  1
  F  F3  4  0.1253  0.5000  0.8297  1
]