data_[Tb2Al2Cu4Si2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tb  1.1000  1.7500  0.9815
  Al  1.6100  1.2500  0.6750
  Cu  1.9000  1.3500  0.8200
  Si  1.9000  1.1000  0.5400
]
_symmetry_space_group_name_H-M [Imm2]
_cell_length_a [3.9370]
_cell_length_b [3.9672]
_cell_length_c [10.7652]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [44]
_chemical_formula_structural [TbAlCu2Si]
_chemical_formula_sum '[Tb2 Al2 Cu4 Si2]'
_cell_volume [168.1372]
_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  2  0.0000  0.0000  0.4370  1.0
  Al  Al1  2  0.0000  0.5000  0.1868  1.0
  Cu  Cu2  2  0.0000  0.0000  0.0512  1.0
  Si  Si3  2  0.0000  0.0000  0.8355  1.0
  Cu  Cu4  2  0.0000  0.5000  0.7016  1.0
]