data_[Tb10Pm16Mg2]
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]
_cell_length_a [12.6487]
_cell_length_b [10.3384]
_cell_length_c [9.4212]
_cell_angle_alpha [90.0000]
_cell_angle_beta [129.2657]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [5]
_chemical_formula_structural [Tb5Pm8Mg]
_chemical_formula_sum '[Tb10 Pm16 Mg2]'
_cell_volume [953.8276]
_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  0.0542  0.9032  0.2159  1
  Tb  Tb1  4  0.2366  0.5610  0.8577  1
  Tb  Tb2  2  0.0000  0.5219  0.0000  1
  Pm  Pm3  4  0.0450  0.2361  0.2265  1
  Pm  Pm4  4  0.1416  0.5963  0.4229  1
  Pm  Pm5  4  0.1760  0.8939  0.7052  1
  Pm  Pm6  4  0.2485  0.7318  0.1650  1
  Mg  Mg7  2  0.0000  0.3836  0.5000  1
]