data_[Tb4Ce4Si2Ir8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tb  1.1000  1.7500  0.9815
  Ce  1.1200  1.8500  1.0800
  Si  1.9000  1.1000  0.5400
  Ir  2.2000  1.3500  0.7650
]
_symmetry_space_group_name_H-M [I4/mmm]
_cell_length_a [6.3400]
_cell_length_b [6.3400]
_cell_length_c [9.2802]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [139]
_chemical_formula_structural [Tb2Ce2SiIr4]
_chemical_formula_sum '[Tb4 Ce4 Si2 Ir8]'
_cell_volume [373.0187]
_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  0.2500  1
  Ce  Ce1  4  0.0000  0.0000  0.3070  1
  Si  Si2  2  0.0000  0.0000  0.0000  1
  Ir  Ir3  8  0.2393  0.2393  0.5000  1
]