data_[Tb10Pm2Sn8]
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
  Sn  1.9600  1.4500  0.8300
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [17.9418]
_cell_length_b [4.4295]
_cell_length_c [8.1304]
_cell_angle_alpha [90.0000]
_cell_angle_beta [102.1969]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Tb5PmSn4]
_chemical_formula_sum '[Tb10 Pm2 Sn8]'
_cell_volume [631.5579]
_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  0.1396  0.0000  0.7234  1
  Tb  Tb1  4  0.2042  0.0000  0.3027  1
  Tb  Tb2  2  0.0000  0.5000  0.5000  1
  Pm  Pm3  2  0.0000  0.5000  0.0000  1
  Sn  Sn4  4  0.0354  0.0000  0.2786  1
  Sn  Sn5  4  0.1892  0.5000  0.0097  1
]