data_[Sm2Mg4Pb10]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sm  1.1700  1.8500  1.2290
  Mg  1.3100  1.5000  0.8600
  Pb  2.3300  1.8000  1.1225
]
_symmetry_space_group_name_H-M [Pbam]
_cell_length_a [6.5855]
_cell_length_b [12.5950]
_cell_length_c [5.5348]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [55]
_chemical_formula_structural [SmMg2Pb5]
_chemical_formula_sum '[Sm2 Mg4 Pb10]'
_cell_volume [459.0817]
_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  2  0.0000  0.5000  0.0000  1
  Mg  Mg1  4  0.1847  0.8871  0.5000  1
  Pb  Pb2  4  0.1826  0.6282  0.5000  1
  Pb  Pb3  4  0.2088  0.2581  0.0000  1
  Pb  Pb4  2  0.0000  0.0000  0.0000  1
]