data_[Rb4Ta2Te6]
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
  Te  2.1000  1.4000  1.2933
]
_symmetry_space_group_name_H-M [Cm]
_cell_length_a [12.3339]
_cell_length_b [11.9689]
_cell_length_c [18.4289]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [8]
_chemical_formula_structural [Rb2TaTe3]
_chemical_formula_sum '[Rb4 Ta2 Te6]'
_cell_volume [2720.5436]
_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  0.0397  0.2508  0.4802  1
  Ta  Ta1  2  0.2676  0.5000  0.5036  1
  Te  Te2  4  0.2924  0.3143  0.5740  1
  Te  Te3  2  0.1467  0.5000  0.3880  1
]