data_[Tb2Gd2Ni4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tb  1.1000  1.7500  0.9815
  Gd  1.2000  1.8000  1.0750
  Ni  1.9100  1.3500  0.7400
]
_symmetry_space_group_name_H-M [Amm2]
_cell_length_a [4.2856]
_cell_length_b [3.6851]
_cell_length_c [10.2223]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [38]
_chemical_formula_structural [TbGdNi2]
_chemical_formula_sum '[Tb2 Gd2 Ni4]'
_cell_volume [161.4394]
_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  0.5000  0.0000  0.6378  1
  Gd  Gd1  2  0.0000  0.0000  0.3615  1
  Ni  Ni2  2  0.0000  0.0000  0.0734  1
  Ni  Ni3  2  0.5000  0.0000  0.9273  1
]