data_[Na8Zn4F16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Zn  1.6500  1.3500  0.8800
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [Pbca]
_cell_length_a [5.5799]
_cell_length_b [5.8148]
_cell_length_c [11.4220]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [61]
_chemical_formula_structural [Na2ZnF4]
_chemical_formula_sum '[Na8 Zn4 F16]'
_cell_volume [370.6019]
_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  8  0.0056  0.0709  0.1529  1
  Zn  Zn1  4  0.0000  0.0000  0.5000  1
  F  F2  8  0.1043  0.0415  0.6666  1
  F  F3  8  0.1948  0.1998  0.9586  1
]