data_[Ac8Tb8Sm4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ac  1.1000  1.9500  1.2600
  Tb  1.1000  1.7500  0.9815
  Sm  1.1700  1.8500  1.2290
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [17.8216]
_cell_length_b [6.7780]
_cell_length_c [6.5316]
_cell_angle_alpha [90.0000]
_cell_angle_beta [107.7205]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [Ac2Tb2Sm]
_chemical_formula_sum '[Ac8 Tb8 Sm4]'
_cell_volume [751.5516]
_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  0.0867  0.1161  0.1567  1
  Ac  Ac1  8  0.1917  0.3536  0.6921  1
  Sm  Sm2  4  0.0000  0.4240  0.7500  1
]