data_[Sm4Ta4C8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sm  1.1700  1.8500  1.2290
  Ta  1.5000  1.4500  0.8200
  C  2.5500  0.7000  0.3000
]
_symmetry_space_group_name_H-M [Pnma]
_cell_length_a [5.8238]
_cell_length_b [3.5973]
_cell_length_c [11.1388]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [62]
_chemical_formula_structural [SmTaC2]
_chemical_formula_sum '[Sm4 Ta4 C8]'
_cell_volume [233.3555]
_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  0.0841  0.7500  0.1403  1.0
  Ta  Ta1  4  0.0901  0.2500  0.3933  1.0
  C  C2  4  0.1517  0.7500  0.7511  1.0
  C  C3  4  0.2111  0.7500  0.4781  1.0
]