data_[Er16Zn2Ag4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Er  1.2400  1.7500  1.0300
  Zn  1.6500  1.3500  0.8800
  Ag  1.9300  1.6000  1.0867
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [17.4944]
_cell_length_b [5.1410]
_cell_length_c [6.8369]
_cell_angle_alpha [90.0000]
_cell_angle_beta [107.0238]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Er8ZnAg2]
_chemical_formula_sum '[Er16 Zn2 Ag4]'
_cell_volume [587.9600]
_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
[
  Er  Er0  4  0.0277  0.0000  0.7828  1.0
  Er  Er1  4  0.0931  0.5000  0.4564  1.0
  Er  Er2  4  0.1667  0.5000  0.9757  1.0
  Er  Er3  4  0.1972  0.0000  0.3108  1.0
  Zn  Zn4  2  0.0000  0.5000  0.0000  1.0
  Ag  Ag5  4  0.1837  0.0000  0.7178  1.0
]