data_[Na6Mg2F12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Mg  1.3100  1.5000  0.8600
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [P2_1/c]
_cell_length_a [5.6810]
_cell_length_b [5.9159]
_cell_length_c [9.5721]
_cell_angle_alpha [90.0000]
_cell_angle_beta [125.7182]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [14]
_chemical_formula_structural [Na3MgF6]
_chemical_formula_sum '[Na6 Mg2 F12]'
_cell_volume [261.1885]
_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
[
  Na  Na0  4  0.2332  0.0627  0.7521  1.0
  Na  Na1  2  0.5000  0.0000  0.5000  1.0
  Mg  Mg2  2  0.0000  0.0000  0.0000  1.0
  F  F3  4  0.0967  0.2249  0.4163  1.0
  F  F4  4  0.2096  0.6924  0.4314  1.0
  F  F5  4  0.3682  0.0700  0.2247  1.0
]