data_[Ac2Dy2I8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ac  1.1000  1.9500  1.2600
  Dy  1.2200  1.7500  1.1310
  I  2.6600  1.4000  1.2733
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [15.2706]
_cell_length_b [4.2335]
_cell_length_c [19.7985]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [AcDyI4]
_chemical_formula_sum '[Ac2 Dy2 I8]'
_cell_volume [1279.9341]
_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  2  0.1501  0.7500  0.4961  1
  Dy  Dy1  2  0.3590  0.2500  0.5013  1
  I  I2  2  0.0374  0.2500  0.5980  1
  I  I3  2  0.2273  0.2500  0.3788  1
  I  I4  2  0.3092  0.7500  0.6124  1
  I  I5  2  0.4610  0.7500  0.4153  1
]