data_[Na2Ni1Ag1F8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Ni  1.9100  1.3500  0.7400
  Ag  1.9300  1.6000  1.0867
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [P-1]
_cell_length_a [4.9903]
_cell_length_b [5.0128]
_cell_length_c [6.8185]
_cell_angle_alpha [86.5388]
_cell_angle_beta [87.1500]
_cell_angle_gamma [85.9864]
_symmetry_Int_Tables_number [2]
_chemical_formula_structural [Na2NiAgF8]
_chemical_formula_sum '[Na2 Ni1 Ag1 F8]'
_cell_volume [169.6618]
_cell_formula_units_Z [1]
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  0.4936  0.5038  0.2344  1.0
  Ni  Ni1  1  0.0000  0.0000  0.0000  1.0
  Ag  Ag2  1  0.0000  0.0000  0.5000  1.0
  F  F3  2  0.1537  0.1695  0.2465  1.0
  F  F4  2  0.1672  0.2180  0.8034  1.0
  F  F5  2  0.2943  0.7506  0.9910  1.0
  F  F6  2  0.2998  0.7260  0.4999  1.0
]