data_[Sm16Sn2Pb4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sm  1.1700  1.8500  1.2290
  Sn  1.9600  1.4500  0.8300
  Pb  2.3300  1.8000  1.1225
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [19.9952]
_cell_length_b [5.2137]
_cell_length_c [6.9888]
_cell_angle_alpha [90.0000]
_cell_angle_beta [102.6765]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Sm8SnPb2]
_chemical_formula_sum '[Sm16 Sn2 Pb4]'
_cell_volume [710.8086]
_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  0.0200  0.0000  0.7639  1
  Sm  Sm1  4  0.0906  0.5000  0.4751  1
  Sm  Sm2  4  0.1579  0.5000  0.0106  1
  Sm  Sm3  4  0.2145  0.0000  0.3346  1
  Sn  Sn4  2  0.0000  0.5000  0.0000  1
  Pb  Pb5  4  0.1811  0.0000  0.7680  1
]