data_[Ac3Pu6O21]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ac  1.1000  1.9500  1.2600
  Pu  1.2800  1.7500  0.9675
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [R-3m]
_cell_length_a [3.9099]
_cell_length_b [3.9099]
_cell_length_c [31.8193]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [166]
_chemical_formula_structural [AcPu2O7]
_chemical_formula_sum '[Ac3 Pu6 O21]'
_cell_volume [421.2569]
_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  0.5000  1
  Pu  Pu1  6  0.0000  0.0000  0.0646  1
  O  O2  6  0.0000  0.0000  0.1322  1
  O  O3  6  0.0000  0.0000  0.2804  1
  O  O4  6  0.0000  0.0000  0.4169  1
  O  O5  3  0.0000  0.0000  0.0000  1
]