data_[Tb4Dy2Si8Ag8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tb  1.1000  1.7500  0.9815
  Dy  1.2200  1.7500  1.1310
  Si  1.9000  1.1000  0.5400
  Ag  1.9300  1.6000  1.0867
]
_symmetry_space_group_name_H-M [Immm]
_cell_length_a [4.0421]
_cell_length_b [4.2263]
_cell_length_c [25.6585]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [71]
_chemical_formula_structural [Tb2Dy(SiAg)4]
_chemical_formula_sum '[Tb4 Dy2 Si8 Ag8]'
_cell_volume [438.3209]
_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
[
  Tb  Tb0  4  0.0000  0.5000  0.1476  1
  Dy  Dy1  2  0.0000  0.0000  0.0000  1
  Si  Si2  4  0.0000  0.0000  0.4547  1
  Si  Si3  4  0.0000  0.5000  0.3121  1
  Ag  Ag4  4  0.0000  0.0000  0.2517  1
  Ag  Ag5  4  0.0000  0.5000  0.4068  1
]