data_[Tb14Ce4Er4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tb  1.1000  1.7500  0.9815
  Ce  1.1200  1.8500  1.0800
  Er  1.2400  1.7500  1.0300
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [11.0649]
_cell_length_b [11.5809]
_cell_length_c [5.9753]
_cell_angle_alpha [90.0000]
_cell_angle_beta [112.5106]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Tb7(CeEr)2]
_chemical_formula_sum '[Tb14 Ce4 Er4]'
_cell_volume [707.3475]
_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  8  0.1730  0.2382  0.1754  1
  Tb  Tb1  4  0.0912  0.5000  0.8063  1
  Tb  Tb2  2  0.0000  0.0000  0.0000  1
  Ce  Ce3  4  0.0000  0.2148  0.5000  1
  Er  Er4  4  0.2295  0.0000  0.5855  1
]