data_[Tb4Nd12Ag8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tb  1.1000  1.7500  0.9815
  Nd  1.1400  1.8500  1.2765
  Ag  1.9300  1.6000  1.0867
]
_symmetry_space_group_name_H-M [Ibam]
_cell_length_a [7.0944]
_cell_length_b [14.3431]
_cell_length_c [7.7323]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [72]
_chemical_formula_structural [TbNd3Ag2]
_chemical_formula_sum '[Tb4 Nd12 Ag8]'
_cell_volume [786.8102]
_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
[
  Tb  Tb0  4  0.0000  0.0000  0.0000  1
  Nd  Nd1  8  0.0000  0.2236  0.2500  1
  Nd  Nd2  4  0.0000  0.5000  0.2500  1
  Ag  Ag3  8  0.1940  0.3592  0.0000  1
]