data_[Tb12Sm4Er8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tb  1.1000  1.7500  0.9815
  Sm  1.1700  1.8500  1.2290
  Er  1.2400  1.7500  1.0300
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [17.3611]
_cell_length_b [7.1236]
_cell_length_c [6.1525]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.3453]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [Tb3SmEr2]
_chemical_formula_sum '[Tb12 Sm4 Er8]'
_cell_volume [760.8824]
_cell_formula_units_Z [4]
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  8  0.1678  0.1253  0.4157  1.0
  Tb  Tb1  4  0.0000  0.3757  0.2500  1.0
  Sm  Sm2  4  0.0000  0.1254  0.7500  1.0
  Er  Er3  8  0.1673  0.3756  0.9172  1.0
]