data_[Li14Pm2Sn8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Li  0.9800  1.4500  0.9000
  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 [12.6501]
_cell_length_b [5.0259]
_cell_length_c [10.1322]
_cell_angle_alpha [90.0000]
_cell_angle_beta [125.6285]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Li7PmSn4]
_chemical_formula_sum '[Li14 Pm2 Sn8]'
_cell_volume [523.6020]
_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
[
  Li  Li0  4  0.0746  0.0000  0.3738  1
  Li  Li1  4  0.1591  0.5000  0.5867  1
  Li  Li2  4  0.2153  0.0000  0.8748  1
  Li  Li3  2  0.0000  0.5000  0.0000  1
  Pm  Pm4  2  0.0000  0.0000  0.0000  1
  Sn  Sn5  4  0.0761  0.5000  0.7974  1
  Sn  Sn6  4  0.1914  0.5000  0.3128  1
]