data_[Tb24Pm10Mg4]
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
  Mg  1.3100  1.5000  0.8600
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [15.6059]
_cell_length_b [9.2495]
_cell_length_c [8.4811]
_cell_angle_alpha [90.0000]
_cell_angle_beta [92.0016]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Tb12Pm5Mg2]
_chemical_formula_sum '[Tb24 Pm10 Mg4]'
_cell_volume [1223.4696]
_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  0.1274  0.3079  0.6768  1
  Tb  Tb1  8  0.1453  0.1819  0.2384  1
  Tb  Tb2  4  0.0570  0.5000  0.3351  1
  Tb  Tb3  4  0.0762  0.0000  0.8788  1
  Pm  Pm4  4  0.2061  0.5000  0.0219  1
  Pm  Pm5  4  0.2328  0.0000  0.5723  1
  Pm  Pm6  2  0.0000  0.0000  0.5000  1
  Mg  Mg7  4  0.0000  0.3337  0.0000  1
]