data_[Li8Sm4Si4Se16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Li  0.9800  1.4500  0.9000
  Sm  1.1700  1.8500  1.2290
  Si  1.9000  1.1000  0.5400
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [Fmm2]
_cell_length_a [9.0079]
_cell_length_b [10.4611]
_cell_length_c [7.1943]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [42]
_chemical_formula_structural [Li2SmSiSe4]
_chemical_formula_sum '[Li8 Sm4 Si4 Se16]'
_cell_volume [677.9447]
_cell_formula_units_Z [4]
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  8  0.2500  0.2500  0.1838  1
  Sm  Sm1  4  0.0000  0.0000  0.0277  1
  Si  Si2  4  0.0000  0.0000  0.4823  1
  Se  Se3  8  0.0000  0.2183  0.3695  1
  Se  Se4  8  0.2010  0.0000  0.6907  1
]