data_[Rb4Pu4U4Se16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  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 [Imma]
_cell_length_a [8.7570]
_cell_length_b [9.0758]
_cell_length_c [12.5786]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [74]
_chemical_formula_structural [RbPuUSe4]
_chemical_formula_sum '[Rb4 Pu4 U4 Se16]'
_cell_volume [999.6978]
_cell_formula_units_Z [4]
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
[
  Rb  Rb0  4  0.0000  0.2500  0.1288  1
  Pu  Pu1  4  0.0000  0.0000  0.5000  1
  U  U2  4  0.2500  0.2500  0.7500  1
  Se  Se3  8  0.0000  0.0481  0.7351  1
  Se  Se4  8  0.2126  0.2500  0.5269  1
]