data_[Zn12Cu2Ag4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Zn  1.6500  1.3500  0.8800
  Cu  1.9000  1.3500  0.8200
  Ag  1.9300  1.6000  1.0867
]
_symmetry_space_group_name_H-M [Cmmm]
_cell_length_a [7.2292]
_cell_length_b [13.3152]
_cell_length_c [2.9519]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [65]
_chemical_formula_structural [Zn6CuAg2]
_chemical_formula_sum '[Zn12 Cu2 Ag4]'
_cell_volume [284.1499]
_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  8  0.1805  0.1593  0.0000  1.0
  Zn  Zn1  4  0.1920  0.5000  0.5000  1.0
  Cu  Cu2  2  0.0000  0.0000  0.0000  1.0
  Ag  Ag3  4  0.0000  0.3168  0.5000  1.0
]