data_[Sm8Cu4Sn4S20]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sm  1.1700  1.8500  1.2290
  Cu  1.9000  1.3500  0.8200
  Sn  1.9600  1.4500  0.8300
  S  2.5800  1.0000  0.8800
]
_symmetry_space_group_name_H-M [Cmc2_1]
_cell_length_a [3.8685]
_cell_length_b [16.6001]
_cell_length_c [11.7433]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [36]
_chemical_formula_structural [Sm2CuSnS5]
_chemical_formula_sum '[Sm8 Cu4 Sn4 S20]'
_cell_volume [754.1326]
_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
[
  Sm  Sm0  4  0.0000  0.1157  0.6839  1.0
  Sm  Sm1  4  0.0000  0.1183  0.3026  1.0
  Cu  Cu2  4  0.0000  0.4987  0.9868  1.0
  Sn  Sn3  4  0.0000  0.1889  0.9992  1.0
  S  S4  4  0.0000  0.0391  0.0709  1.0
  S  S5  4  0.0000  0.2916  0.6617  1.0
  S  S6  4  0.0000  0.2977  0.3295  1.0
  S  S7  4  0.0000  0.3549  0.9970  1.0
  S  S8  4  0.0000  0.4933  0.2924  1.0
]