data_[Na4Mg2Al2F12]
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
  Al  1.6100  1.2500  0.6750
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [Pmmn]
_cell_length_a [5.6063]
_cell_length_b [7.9471]
_cell_length_c [5.6202]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [59]
_chemical_formula_structural [Na2MgAlF6]
_chemical_formula_sum '[Na4 Mg2 Al2 F12]'
_cell_volume [250.4061]
_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  0.0000  0.2513  0.7594  1
  Mg  Mg1  2  0.0000  0.5000  0.2565  1
  Al  Al2  2  0.0000  0.0000  0.2461  1
  F  F3  4  0.0000  0.2365  0.2375  1
  F  F4  4  0.2366  0.0000  0.0079  1
  F  F5  4  0.2378  0.0000  0.4799  1
]