data_[Ni2Ag2Cl8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ni  1.9100  1.3500  0.7400
  Ag  1.9300  1.6000  1.0867
  Cl  3.1600  1.0000  0.7800
]
_symmetry_space_group_name_H-M [P-1]
_cell_length_a [4.2767]
_cell_length_b [6.4986]
_cell_length_c [12.1946]
_cell_angle_alpha [97.0709]
_cell_angle_beta [96.3901]
_cell_angle_gamma [99.5225]
_symmetry_Int_Tables_number [2]
_chemical_formula_structural [NiAgCl4]
_chemical_formula_sum '[Ni2 Ag2 Cl8]'
_cell_volume [328.6917]
_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
[
  Ni  Ni0  1  0.0000  0.0000  0.0000  1.0
  Ni  Ni1  1  0.5000  0.5000  0.5000  1.0
  Ag  Ag2  2  0.3838  0.7696  0.7562  1.0
  Cl  Cl3  2  0.0043  0.2971  0.1056  1.0
  Cl  Cl4  2  0.2299  0.4121  0.6333  1.0
  Cl  Cl5  2  0.2986  0.8912  0.1313  1.0
  Cl  Cl6  2  0.3201  0.1850  0.4109  1.0
]