data_[Rb2Tl2Cd4O8]
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
  Cd  1.6900  1.5500  1.0900
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [I-42m]
_cell_length_a [5.7297]
_cell_length_b [5.7297]
_cell_length_c [9.2436]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [121]
_chemical_formula_structural [RbTlCd2O4]
_chemical_formula_sum '[Rb2 Tl2 Cd4 O8]'
_cell_volume [303.4672]
_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  1.0
  Tl  Tl1  2  0.0000  0.0000  0.0000  1.0
  Cd  Cd2  4  0.0000  0.5000  0.2500  1.0
  O  O3  8  0.2093  0.2093  0.1499  1.0
]