data_[Na2Zn2Ag8]
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
  Ag  1.9300  1.6000  1.0867
]
_symmetry_space_group_name_H-M [Pmma]
_cell_length_a [8.1920]
_cell_length_b [4.0177]
_cell_length_c [7.2276]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [51]
_chemical_formula_structural [NaZnAg4]
_chemical_formula_sum '[Na2 Zn2 Ag8]'
_cell_volume [237.8843]
_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  2  0.2500  0.0000  0.3751  1.0
  Zn  Zn1  2  0.2500  0.0000  0.7698  1.0
  Ag  Ag2  4  0.0449  0.5000  0.6940  1.0
  Ag  Ag3  2  0.0000  0.0000  0.0000  1.0
  Ag  Ag4  2  0.2500  0.5000  0.0481  1.0
]