data_[Rb1Np1S2O8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Np  1.3600  1.7500  1.0000
  S  2.5800  1.0000  0.8800
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [P-3m1]
_cell_length_a [5.5826]
_cell_length_b [5.5826]
_cell_length_c [8.4500]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [164]
_chemical_formula_structural [RbNp(SO4)2]
_chemical_formula_sum '[Rb1 Np1 S2 O8]'
_cell_volume [228.0683]
_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  1  0.0000  0.0000  0.5000  1
  Np  Np1  1  0.0000  0.0000  0.0000  1
  S  S2  2  0.3333  0.6667  0.7619  1
  O  O3  6  0.1882  0.3764  0.8251  1
  O  O4  2  0.3333  0.6667  0.5897  1
]