data_[Rb28Tl2O2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Tl  1.6200  1.9000  1.3325
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Amm2]
_cell_length_a [12.3041]
_cell_length_b [11.7847]
_cell_length_c [18.0301]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [38]
_chemical_formula_structural [Rb14TlO]
_chemical_formula_sum '[Rb28 Tl2 O2]'
_cell_volume [2614.3630]
_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  8  0.3018  0.2211  0.6112  1
  Rb  Rb1  4  0.0000  0.1998  0.8299  1
  Rb  Rb2  4  0.2802  0.0000  0.3290  1
  Rb  Rb3  4  0.3293  0.0000  0.9579  1
  Rb  Rb4  4  0.5000  0.1890  0.8128  1
  Rb  Rb5  2  0.0000  0.0000  0.1135  1
  Rb  Rb6  2  0.0000  0.0000  0.5360  1
  Tl  Tl7  2  0.5000  0.0000  0.1674  1
  O  O8  2  0.5000  0.0000  0.8793  1
]