data_[Ac2Pr2Sn4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ac  1.1000  1.9500  1.2600
  Pr  1.1300  1.8500  1.0600
  Sn  1.9600  1.4500  0.8300
]
_symmetry_space_group_name_H-M [Pmc2_1]
_cell_length_a [4.5065]
_cell_length_b [6.5510]
_cell_length_c [9.0104]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [26]
_chemical_formula_structural [AcPrSn2]
_chemical_formula_sum '[Ac2 Pr2 Sn4]'
_cell_volume [266.0063]
_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  0.5000  0.3702  0.3187  1
  Pr  Pr1  2  0.0000  0.1308  0.6826  1
  Sn  Sn2  2  0.0000  0.3889  0.0393  1
  Sn  Sn3  2  0.5000  0.0979  0.9594  1
]