data_[Rb1Np2Ag1O8]
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
  Ag  1.9300  1.6000  1.0867
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [P-3]
_cell_length_a [6.0434]
_cell_length_b [6.0434]
_cell_length_c [6.8846]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [147]
_chemical_formula_structural [RbNp2AgO8]
_chemical_formula_sum '[Rb1 Np2 Ag1 O8]'
_cell_volume [217.7580]
_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  2  0.3333  0.6667  0.9439  1
  Ag  Ag2  1  0.0000  0.0000  0.0000  1
  O  O3  6  0.0664  0.3944  0.1278  1
  O  O4  2  0.3333  0.6667  0.6752  1
]