data_[Sm12Sb4C4]
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
  C  2.5500  0.7000  0.3000
]
_symmetry_space_group_name_H-M [Cmcm]
_cell_length_a [3.9496]
_cell_length_b [12.7716]
_cell_length_c [10.0630]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [Sm3SbC]
_chemical_formula_sum '[Sm12 Sb4 C4]'
_cell_volume [507.6032]
_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  8  0.0000  0.1261  0.5453  1.0
  Sm  Sm1  4  0.0000  0.4507  0.7500  1.0
  Sb  Sb2  4  0.0000  0.2500  0.2500  1.0
  C  C3  4  0.0000  0.5000  0.0000  1.0
]