data_[Ac20Tl8Ge8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ac  1.1000  1.9500  1.2600
  Tl  1.6200  1.9000  1.3325
  Ge  2.0100  1.2500  0.7700
]
_symmetry_space_group_name_H-M [Ima2]
_cell_length_a [18.3092]
_cell_length_b [7.7766]
_cell_length_c [9.2154]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [46]
_chemical_formula_structural [Ac5(TlGe)2]
_chemical_formula_sum '[Ac20 Tl8 Ge8]'
_cell_volume [1312.1285]
_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  8  0.0656  0.7171  0.7528  1
  Ac  Ac1  8  0.1493  0.1756  0.8298  1
  Ac  Ac2  4  0.2500  0.6212  0.9930  1
  Tl  Tl3  4  0.0000  0.0000  0.9887  1
  Tl  Tl4  4  0.2500  0.0177  0.1377  1
  Ge  Ge5  8  0.0625  0.0721  0.5257  1
]