data_[Tb8Cu2Ag2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tb  1.1000  1.7500  0.9815
  Cu  1.9000  1.3500  0.8200
  Ag  1.9300  1.6000  1.0867
]
_symmetry_space_group_name_H-M [P2_1/c]
_cell_length_a [6.9105]
_cell_length_b [7.3286]
_cell_length_c [6.8665]
_cell_angle_alpha [90.0000]
_cell_angle_beta [95.7464]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [14]
_chemical_formula_structural [Tb4CuAg]
_chemical_formula_sum '[Tb8 Cu2 Ag2]'
_cell_volume [346.0020]
_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  0.1608  0.6551  0.8856  1
  Tb  Tb1  4  0.3467  0.1660  0.8228  1
  Cu  Cu2  2  0.5000  0.0000  0.5000  1
  Ag  Ag3  2  0.0000  0.0000  0.0000  1
]