data_[Sm6Sb3Pb3]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sm  1.1700  1.8500  1.2290
  Sb  2.0500  1.4500  0.8300
  Pb  2.3300  1.8000  1.1225
]
_symmetry_space_group_name_H-M [R3m]
_cell_length_a [4.2519]
_cell_length_b [4.2519]
_cell_length_c [24.9822]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [160]
_chemical_formula_structural [Sm2SbPb]
_chemical_formula_sum '[Sm6 Sb3 Pb3]'
_cell_volume [391.1353]
_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  0.0757  1
  Sm  Sm1  3  0.0000  0.0000  0.2576  1
  Sb  Sb2  3  0.0000  0.0000  0.6677  1
  Pb  Pb3  3  0.0000  0.0000  0.4990  1
]