data_[Rb4Ta8O24]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Ta  1.5000  1.4500  0.8200
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Ima2]
_cell_length_a [7.4966]
_cell_length_b [10.5986]
_cell_length_c [7.4962]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [46]
_chemical_formula_structural [RbTa2O6]
_chemical_formula_sum '[Rb4 Ta8 O24]'
_cell_volume [595.5993]
_cell_formula_units_Z [4]
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  0.2500  0.1247  0.4823  1.0
  Ta  Ta1  4  0.0000  0.0000  0.9932  1.0
  Ta  Ta2  4  0.2500  0.7498  0.2425  1.0
  O  O3  8  0.0620  0.6251  0.3058  1.0
  O  O4  8  0.0622  0.6249  0.6817  1.0
  O  O5  4  0.2500  0.0630  0.9947  1.0
  O  O6  4  0.2500  0.6870  0.9932  1.0
]