data_[K4Mg6F16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Mg  1.3100  1.5000  0.8600
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [12.5449]
_cell_length_b [6.2989]
_cell_length_c [5.3563]
_cell_angle_alpha [90.0000]
_cell_angle_beta [109.2375]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [K2Mg3F8]
_chemical_formula_sum '[K4 Mg6 F16]'
_cell_volume [399.6160]
_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  0.2239  0.5000  0.6715  1.0
  Mg  Mg1  4  0.0000  0.2600  0.0000  1.0
  Mg  Mg2  2  0.0000  0.0000  0.5000  1.0
  F  F3  8  0.0896  0.2173  0.3815  1.0
  F  F4  4  0.0872  0.0000  0.8999  1.0
  F  F5  4  0.0986  0.5000  0.9673  1.0
]