data_[Ac8Sm4Sn8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ac  1.1000  1.9500  1.2600
  Sm  1.1700  1.8500  1.2290
  Sn  1.9600  1.4500  0.8300
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [13.4192]
_cell_length_b [4.9586]
_cell_length_c [12.0012]
_cell_angle_alpha [90.0000]
_cell_angle_beta [117.1285]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Ac2SmSn2]
_chemical_formula_sum '[Ac8 Sm4 Sn8]'
_cell_volume [710.7088]
_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
[
  Ac  Ac0  4  0.0121  0.5000  0.6826  1
  Ac  Ac1  4  0.1845  0.5000  0.0946  1
  Sm  Sm2  4  0.2187  0.0000  0.3652  1
  Sn  Sn3  4  0.0210  0.0000  0.8877  1
  Sn  Sn4  4  0.1265  0.0000  0.5688  1
]