data_[Sm12Si4Pt2Br6]
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
  Pt  2.2800  1.3500  0.8050
  Br  2.9600  1.1500  0.8825
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [18.9132]
_cell_length_b [4.1589]
_cell_length_c [8.8716]
_cell_angle_alpha [90.0000]
_cell_angle_beta [104.5987]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Sm6Si2PtBr3]
_chemical_formula_sum '[Sm12 Si4 Pt2 Br6]'
_cell_volume [675.2913]
_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  0.0090  0.0000  0.2217  1.0
  Sm  Sm1  4  0.1582  0.5000  0.1092  1.0
  Sm  Sm2  4  0.1761  0.5000  0.5638  1.0
  Si  Si3  4  0.1666  0.0000  0.3375  1.0
  Pt  Pt4  2  0.0000  0.5000  0.0000  1.0
  Br  Br5  4  0.1712  0.0000  0.8329  1.0
  Br  Br6  2  0.0000  0.5000  0.5000  1.0
]