data_[Pu2U2Se8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pu  1.2800  1.7500  0.9675
  U  1.3800  1.7500  0.9913
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [P4/mbm]
_cell_length_a [6.4542]
_cell_length_b [6.4542]
_cell_length_c [7.2931]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [127]
_chemical_formula_structural [PuUSe4]
_chemical_formula_sum '[Pu2 U2 Se8]'
_cell_volume [303.8065]
_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
[
  Pu  Pu0  2  0.0000  0.0000  0.5000  1
  U  U1  2  0.0000  0.0000  0.0000  1
  Se  Se2  8  0.2039  0.2961  0.2424  1
]