data_[Tb1Er1Ir1Pb1]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tb  1.1000  1.7500  0.9815
  Er  1.2400  1.7500  1.0300
  Ir  2.2000  1.3500  0.7650
  Pb  2.3300  1.8000  1.1225
]
_symmetry_space_group_name_H-M [P4mm]
_cell_length_a [3.4455]
_cell_length_b [3.4455]
_cell_length_c [8.2761]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [99]
_chemical_formula_structural [TbErIrPb]
_chemical_formula_sum '[Tb1 Er1 Ir1 Pb1]'
_cell_volume [98.2476]
_cell_formula_units_Z [1]
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  1  0.5000  0.5000  0.7752  1.0
  Er  Er1  1  0.5000  0.5000  0.3684  1.0
  Ir  Ir2  1  0.0000  0.0000  0.5661  1.0
  Pb  Pb3  1  0.0000  0.0000  0.0750  1.0
]