data_[Na4Pu2Sb4Pb2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Pu  1.2800  1.7500  0.9675
  Sb  2.0500  1.4500  0.8300
  Pb  2.3300  1.8000  1.1225
]
_symmetry_space_group_name_H-M [Pmc2_1]
_cell_length_a [5.3316]
_cell_length_b [9.4735]
_cell_length_c [6.7852]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [26]
_chemical_formula_structural [Na2PuSb2Pb]
_chemical_formula_sum '[Na4 Pu2 Sb4 Pb2]'
_cell_volume [342.7138]
_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
[
  Na  Na0  2  0.0000  0.1552  0.7811  1
  Na  Na1  2  0.5000  0.0176  0.5168  1
  Pu  Pu2  2  0.0000  0.4887  0.5020  1
  Sb  Sb3  2  0.0000  0.1772  0.2716  1
  Sb  Sb4  2  0.5000  0.3362  0.7527  1
  Pb  Pb5  2  0.5000  0.3276  0.2215  1
]