data_[Sm12H4Pb4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sm  1.1700  1.8500  1.2290
  H  2.2000  0.2500  0.0000
  Pb  2.3300  1.8000  1.1225
]
_symmetry_space_group_name_H-M [P2_1/c]
_cell_length_a [6.4835]
_cell_length_b [6.7147]
_cell_length_c [11.8098]
_cell_angle_alpha [90.0000]
_cell_angle_beta [95.0338]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [14]
_chemical_formula_structural [Sm3HPb]
_chemical_formula_sum '[Sm12 H4 Pb4]'
_cell_volume [512.1520]
_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  4  0.1102  0.6253  0.1757  1
  Sm  Sm1  4  0.2025  0.1262  0.0895  1
  Sm  Sm2  4  0.3259  0.6553  0.9144  1
  H  H3  4  0.1025  0.6759  0.5192  1
  Pb  Pb4  4  0.4022  0.1817  0.8382  1
]