data_[Y8Er8Ag4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Y  1.2200  1.8000  1.0400
  Er  1.2400  1.7500  1.0300
  Ag  1.9300  1.6000  1.0867
]
_symmetry_space_group_name_H-M [I4_1/amd]
_cell_length_a [5.0081]
_cell_length_b [5.0081]
_cell_length_c [24.3876]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [141]
_chemical_formula_structural [Y2Er2Ag]
_chemical_formula_sum '[Y8 Er8 Ag4]'
_cell_volume [611.6544]
_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
[
  Y  Y0  8  0.0000  0.0000  0.3240  1
  Er  Er1  8  0.0000  0.0000  0.1760  1
  Ag  Ag2  4  0.0000  0.0000  0.5000  1
]