data_[Ac6Tb4Tl8]
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
  Tl  1.6200  1.9000  1.3325
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [13.0940]
_cell_length_b [5.1217]
_cell_length_c [10.4676]
_cell_angle_alpha [90.0000]
_cell_angle_beta [118.8052]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Ac3(TbTl2)2]
_chemical_formula_sum '[Ac6 Tb4 Tl8]'
_cell_volume [615.1307]
_cell_formula_units_Z [2]
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  0.1401  0.5000  0.6898  1
  Tb  Tb1  4  0.1498  0.5000  0.3197  1
  Ac  Ac2  2  0.0000  0.0000  0.0000  1
  Tl  Tl3  4  0.0754  0.0000  0.4107  1
  Tl  Tl4  4  0.1923  0.5000  0.0405  1
]