data_[Na8Mg4Ag4Cl20]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Mg  1.3100  1.5000  0.8600
  Ag  1.9300  1.6000  1.0867
  Cl  3.1600  1.0000  0.7800
]
_symmetry_space_group_name_H-M [Cmc2_1]
_cell_length_a [3.8551]
_cell_length_b [16.2861]
_cell_length_c [13.9558]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [36]
_chemical_formula_structural [Na2MgAgCl5]
_chemical_formula_sum '[Na8 Mg4 Ag4 Cl20]'
_cell_volume [876.2210]
_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  4  0.0000  0.0689  0.6580  1.0
  Na  Na1  4  0.0000  0.1437  0.2680  1.0
  Mg  Mg2  4  0.0000  0.2445  0.0321  1.0
  Ag  Ag3  4  0.0000  0.4494  0.4349  1.0
  Cl  Cl4  4  0.0000  0.0933  0.0564  1.0
  Cl  Cl5  4  0.0000  0.2497  0.6643  1.0
  Cl  Cl6  4  0.0000  0.2672  0.4123  1.0
  Cl  Cl7  4  0.0000  0.3928  0.0262  1.0
  Cl  Cl8  4  0.0000  0.4858  0.7718  1.0
]