data_[Tb1Eu3]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tb  1.1000  1.7500  0.9815
  Eu  1.2000  1.8500  1.1985
]
_symmetry_space_group_name_H-M [Pmm2]
_cell_length_a [3.8288]
_cell_length_b [6.2360]
_cell_length_c [6.7333]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [25]
_chemical_formula_structural [TbEu3]
_chemical_formula_sum '[Tb1 Eu3]'
_cell_volume [160.7661]
_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  0.0000  0.0000  0.5810  1.0
  Eu  Eu1  1  0.0000  0.5000  0.2566  1.0
  Eu  Eu2  1  0.5000  0.0000  0.0834  1.0
  Eu  Eu3  1  0.5000  0.5000  0.7455  1.0
]