data_[K6Pu4U2Se12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  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 [C2/m]
_cell_length_a [7.4017]
_cell_length_b [12.8203]
_cell_length_c [8.0418]
_cell_angle_alpha [90.0000]
_cell_angle_beta [107.8725]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [K3Pu2USe6]
_chemical_formula_sum '[K6 Pu4 U2 Se12]'
_cell_volume [726.2778]
_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
[
  K  K0  4  0.0000  0.1681  0.5000  1
  K  K1  2  0.0000  0.5000  0.5000  1
  Pu  Pu2  4  0.0000  0.3334  0.0000  1
  U  U3  2  0.0000  0.0000  0.0000  1
  Se  Se4  8  0.2317  0.1633  0.2054  1
  Se  Se5  4  0.2422  0.5000  0.2055  1
]