data_[Na2As4F16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  As  2.1800  1.1500  0.6600
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [9.5984]
_cell_length_b [7.4912]
_cell_length_c [5.1533]
_cell_angle_alpha [90.0000]
_cell_angle_beta [98.2489]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [NaAs2F8]
_chemical_formula_sum '[Na2 As4 F16]'
_cell_volume [366.7103]
_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  2  0.0000  0.0000  0.0000  1
  As  As1  4  0.2205  0.5000  0.5290  1
  F  F2  8  0.1803  0.1705  0.2768  1
  F  F3  4  0.0859  0.5000  0.7545  1
  F  F4  4  0.1383  0.0000  0.6912  1
]