data_[Sm3Hg18Pb36]
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
  Pb  2.3300  1.8000  1.1225
]
_symmetry_space_group_name_H-M [R-3]
_cell_length_a [12.2101]
_cell_length_b [12.2101]
_cell_length_c [13.8546]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [148]
_chemical_formula_structural [Sm(HgPb2)6]
_chemical_formula_sum '[Sm3 Hg18 Pb36]'
_cell_volume [1788.8101]
_cell_formula_units_Z [3]
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  3  0.0000  0.0000  0.0000  1.0
  Hg  Hg1  18  0.0524  0.4697  0.7165  1.0
  Pb  Pb2  18  0.0435  0.1833  0.7904  1.0
  Pb  Pb3  18  0.0853  0.2057  0.4088  1.0
]