data_[Rb4Np6O16]
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
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [13.4615]
_cell_length_b [6.9688]
_cell_length_c [5.9965]
_cell_angle_alpha [90.0000]
_cell_angle_beta [110.0120]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Rb2Np3O8]
_chemical_formula_sum '[Rb4 Np6 O16]'
_cell_volume [528.5633]
_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
[
  Rb  Rb0  4  0.2146  0.5000  0.6633  1
  Np  Np1  4  0.0000  0.2554  0.0000  1
  Np  Np2  2  0.0000  0.0000  0.5000  1
  O  O3  8  0.0823  0.2131  0.3744  1
  O  O4  4  0.0834  0.0000  0.9015  1
  O  O5  4  0.0916  0.5000  0.9719  1
]