data_[Pm2Sn4F16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Sn  1.9600  1.4500  0.8300
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [12.3859]
_cell_length_b [5.3602]
_cell_length_c [5.3286]
_cell_angle_alpha [90.0000]
_cell_angle_beta [92.8070]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [PmSn2F8]
_chemical_formula_sum '[Pm2 Sn4 F16]'
_cell_volume [353.3448]
_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
[
  Pm  Pm0  2  0.0000  0.0000  0.0000  1
  Sn  Sn1  4  0.1847  0.5000  0.5366  1
  F  F2  8  0.0905  0.2433  0.7100  1
  F  F3  4  0.0928  0.5000  0.2061  1
  F  F4  4  0.1708  0.0000  0.1807  1
]