data_[Ac4Tb6Y8]
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
  Y  1.2200  1.8000  1.0400
]
_symmetry_space_group_name_H-M [P2_1/c]
_cell_length_a [8.8445]
_cell_length_b [8.7411]
_cell_length_c [9.0042]
_cell_angle_alpha [90.0000]
_cell_angle_beta [112.9836]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [14]
_chemical_formula_structural [Ac2Tb3Y4]
_chemical_formula_sum '[Ac4 Tb6 Y8]'
_cell_volume [640.8588]
_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  0.1755  0.6478  0.5479  1
  Tb  Tb1  4  0.2500  0.1785  0.7520  1
  Tb  Tb2  2  0.5000  0.0000  0.5000  1
  Y  Y3  4  0.0891  0.0363  0.3745  1
  Y  Y4  4  0.4801  0.6357  0.3531  1
]