data_[Tb10Pm4Er4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tb  1.1000  1.7500  0.9815
  Pm  1.1300  1.8500  1.1100
  Er  1.2400  1.7500  1.0300
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [11.8188]
_cell_length_b [3.5722]
_cell_length_c [14.7005]
_cell_angle_alpha [90.0000]
_cell_angle_beta [111.4368]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Tb5(PmEr)2]
_chemical_formula_sum '[Tb10 Pm4 Er4]'
_cell_volume [577.7072]
_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  0.1115  0.0000  0.4453  1
  Tb  Tb1  4  0.2215  0.0000  0.8882  1
  Tb  Tb2  2  0.0000  0.0000  0.0000  1
  Pm  Pm3  4  0.0564  0.5000  0.2232  1
  Er  Er4  4  0.1647  0.5000  0.6653  1
]