data_[Er6Zn8Ag8]
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 [Immm]
_cell_length_a [3.5037]
_cell_length_b [4.5224]
_cell_length_c [28.3018]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [71]
_chemical_formula_structural [Er3(ZnAg)4]
_chemical_formula_sum '[Er6 Zn8 Ag8]'
_cell_volume [448.4449]
_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  0.0000  0.0000  0.3615  1.0
  Er  Er1  2  0.0000  0.5000  0.5000  1.0
  Zn  Zn2  4  0.0000  0.0000  0.1877  1.0
  Zn  Zn3  4  0.0000  0.5000  0.0442  1.0
  Ag  Ag4  4  0.0000  0.0000  0.0926  1.0
  Ag  Ag5  4  0.0000  0.5000  0.2378  1.0
]