data_[Li2Pm2Sn2Se6]
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
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [8.8384]
_cell_length_b [4.0313]
_cell_length_c [9.1199]
_cell_angle_alpha [90.0000]
_cell_angle_beta [98.9126]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [LiPmSnSe3]
_chemical_formula_sum '[Li2 Pm2 Sn2 Se6]'
_cell_volume [321.0164]
_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  2  0.0962  0.7500  0.5875  1
  Pm  Pm1  2  0.1622  0.7500  0.2167  1
  Sn  Sn2  2  0.3438  0.2500  0.8358  1
  Se  Se3  2  0.0983  0.7500  0.8739  1
  Se  Se4  2  0.1975  0.2500  0.4618  1
  Se  Se5  2  0.3948  0.2500  0.1450  1
]