data_[Rb2Pu1Np1Br8]
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
  Np  1.3600  1.7500  1.0000
  Br  2.9600  1.1500  0.8825
]
_symmetry_space_group_name_H-M [P2/m]
_cell_length_a [7.2036]
_cell_length_b [9.0702]
_cell_length_c [7.8662]
_cell_angle_alpha [90.0000]
_cell_angle_beta [92.1392]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [10]
_chemical_formula_structural [Rb2PuNpBr8]
_chemical_formula_sum '[Rb2 Pu1 Np1 Br8]'
_cell_volume [513.6033]
_cell_formula_units_Z [1]
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  2  0.5000  0.2506  0.5000  1
  Pu  Pu1  1  0.0000  0.5000  0.0000  1
  Np  Np2  1  0.0000  0.0000  0.0000  1
  Br  Br3  4  0.2221  0.2466  0.8771  1
  Br  Br4  2  0.2088  0.0000  0.3093  1
  Br  Br5  2  0.2138  0.5000  0.3094  1
]