data_[Ac3Pr3Y6Se18]
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
  Y  1.2200  1.8000  1.0400
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [R3]
_cell_length_a [7.4824]
_cell_length_b [7.4824]
_cell_length_c [19.5582]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [146]
_chemical_formula_structural [AcPr(YSe3)2]
_chemical_formula_sum '[Ac3 Pr3 Y6 Se18]'
_cell_volume [948.2840]
_cell_formula_units_Z [3]
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  3  0.0000  0.0000  0.1949  1
  Pr  Pr1  3  0.0000  0.0000  0.6881  1
  Y  Y2  3  0.0000  0.0000  0.4842  1
  Y  Y3  3  0.0000  0.0000  0.9874  1
  Se  Se4  9  0.0199  0.3768  0.7472  1
  Se  Se5  9  0.0201  0.6231  0.2473  1
]