data_[Zn2Si2Ag4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Zn  1.6500  1.3500  0.8800
  Si  1.9000  1.1000  0.5400
  Ag  1.9300  1.6000  1.0867
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [5.8045]
_cell_length_b [9.2667]
_cell_length_c [2.8572]
_cell_angle_alpha [90.0000]
_cell_angle_beta [119.4624]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [ZnSiAg2]
_chemical_formula_sum '[Zn2 Si2 Ag4]'
_cell_volume [133.8099]
_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
[
  Zn  Zn0  2  0.0000  0.5000  0.0000  1
  Si  Si1  2  0.0000  0.0000  0.0000  1
  Ag  Ag2  4  0.2500  0.2500  0.0000  1
]