data_[Tb2Pm4F16]
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
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [15.1300]
_cell_length_b [3.7528]
_cell_length_c [5.6900]
_cell_angle_alpha [90.0000]
_cell_angle_beta [111.0135]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [TbPm2F8]
_chemical_formula_sum '[Tb2 Pm4 F16]'
_cell_volume [301.5896]
_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  2  0.0000  0.5000  0.0000  1
  Pm  Pm1  4  0.1745  0.0000  0.6764  1
  F  F2  4  0.0410  0.0000  0.7889  1
  F  F3  4  0.0924  0.5000  0.4360  1
  F  F4  4  0.1742  0.5000  0.9602  1
  F  F5  4  0.2241  0.0000  0.3276  1
]