data_[Tb20Sn8C4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tb  1.1000  1.7500  0.9815
  Sn  1.9600  1.4500  0.8300
  C  2.5500  0.7000  0.3000
]
_symmetry_space_group_name_H-M [Cmcm]
_cell_length_a [5.2674]
_cell_length_b [16.0601]
_cell_length_c [12.1295]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [Tb5Sn2C]
_chemical_formula_sum '[Tb20 Sn8 C4]'
_cell_volume [1026.0894]
_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
[
  Tb  Tb0  8  0.0000  0.0723  0.1141  1
  Tb  Tb1  8  0.0000  0.2819  0.0868  1
  Tb  Tb2  4  0.0000  0.3081  0.7500  1
  Sn  Sn3  8  0.0000  0.1276  0.6255  1
  C  C4  4  0.0000  0.1783  0.2500  1
]