data_[Sm6Si2S4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sm  1.1700  1.8500  1.2290
  Si  1.9000  1.1000  0.5400
  S  2.5800  1.0000  0.8800
]
_symmetry_space_group_name_H-M [Immm]
_cell_length_a [4.0949]
_cell_length_b [5.7829]
_cell_length_c [12.2890]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [71]
_chemical_formula_structural [Sm3SiS2]
_chemical_formula_sum '[Sm6 Si2 S4]'
_cell_volume [291.0073]
_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
[
  Sm  Sm0  4  0.0000  0.0000  0.1661  1
  Sm  Sm1  2  0.0000  0.0000  0.5000  1
  Si  Si2  2  0.0000  0.5000  0.5000  1
  S  S3  4  0.0000  0.5000  0.1663  1
]