data_[Na4Mg4S4O16F4]
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
  S  2.5800  1.0000  0.8800
  O  3.4400  0.6000  1.2600
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [6.7726]
_cell_length_b [8.6429]
_cell_length_c [7.1866]
_cell_angle_alpha [90.0000]
_cell_angle_beta [113.9367]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [NaMgSO4F]
_chemical_formula_sum '[Na4 Mg4 S4 O16 F4]'
_cell_volume [384.4890]
_cell_formula_units_Z [4]
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  0.3308  0.7500  1.0
  Mg  Mg1  4  0.0000  0.0000  0.0000  1.0
  S  S2  4  0.0000  0.3216  0.2500  1.0
  O  O3  8  0.0943  0.2226  0.1359  1.0
  O  O4  8  0.1693  0.4239  0.3956  1.0
  F  F5  4  0.0000  0.0778  0.7500  1.0
]