data_[Pu3Cu6Pt3O18]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pu  1.2800  1.7500  0.9675
  Cu  1.9000  1.3500  0.8200
  Pt  2.2800  1.3500  0.8050
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [R-3]
_cell_length_a [5.3203]
_cell_length_b [5.3203]
_cell_length_c [14.6734]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [148]
_chemical_formula_structural [PuCu2PtO6]
_chemical_formula_sum '[Pu3 Cu6 Pt3 O18]'
_cell_volume [359.6965]
_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
[
  Pu  Pu0  3  0.0000  -0.0000  0.0000  1
  Cu  Cu1  6  0.0000  0.0000  0.2529  1
  Pt  Pt2  3  0.0000  0.0000  0.5000  1
  O  O3  18  0.0103  0.6440  0.2452  1
]