data_[Rb2W2Se4O16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  W  2.3600  1.3500  0.7667
  Se  2.5500  1.1500  1.0133
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [10.6964]
_cell_length_b [5.4753]
_cell_length_c [8.2346]
_cell_angle_alpha [90.0000]
_cell_angle_beta [97.3074]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [RbW(SeO4)2]
_chemical_formula_sum '[Rb2 W2 Se4 O16]'
_cell_volume [478.3536]
_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  2  0.0000  0.0000  0.5000  1
  W  W1  2  0.0000  0.0000  0.0000  1
  Se  Se2  4  0.1485  0.5000  0.1855  1
  O  O3  8  0.0316  0.2581  0.1750  1
  O  O4  4  0.1663  0.0000  0.9651  1
  O  O5  4  0.2073  0.5000  0.3795  1
]