data_[Sm20Hg8Bi8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sm  1.1700  1.8500  1.2290
  Hg  2.0000  1.5000  1.2450
  Bi  2.0200  1.6000  1.0350
]
_symmetry_space_group_name_H-M [Cmce]
_cell_length_a [16.1777]
_cell_length_b [8.4027]
_cell_length_c [8.1912]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [64]
_chemical_formula_structural [Sm5(HgBi)2]
_chemical_formula_sum '[Sm20 Hg8 Bi8]'
_cell_volume [1113.4680]
_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  16  0.1330  0.1688  0.6624  1.0
  Sm  Sm1  4  0.0000  0.0000  0.0000  1.0
  Hg  Hg2  8  0.0000  0.1341  0.3710  1.0
  Bi  Bi3  8  0.2052  0.0000  0.0000  1.0
]