data_[Na4Ni2Ag2F12]
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 [P2_1/c]
_cell_length_a [5.4109]
_cell_length_b [5.6911]
_cell_length_c [10.1664]
_cell_angle_alpha [90.0000]
_cell_angle_beta [122.1971]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [14]
_chemical_formula_structural [Na2NiAgF6]
_chemical_formula_sum '[Na4 Ni2 Ag2 F12]'
_cell_volume [264.9210]
_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  0.2752  0.5617  0.7554  1.0
  Ni  Ni1  2  0.0000  0.0000  0.5000  1.0
  Ag  Ag2  2  0.5000  0.0000  0.0000  1.0
  F  F3  4  0.0838  0.5639  0.2115  1.0
  F  F4  4  0.2696  0.2089  0.0817  1.0
  F  F5  4  0.3637  0.6925  0.0630  1.0
]