data_[Rb2Tl4Ge2O8]
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
  Ge  2.0100  1.2500  0.7700
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Cm]
_cell_length_a [10.3057]
_cell_length_b [6.0778]
_cell_length_c [6.1179]
_cell_angle_alpha [90.0000]
_cell_angle_beta [123.6640]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [8]
_chemical_formula_structural [RbTl2GeO4]
_chemical_formula_sum '[Rb2 Tl4 Ge2 O8]'
_cell_volume [318.9380]
_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  0.4662  0.0000  0.9363  1.0
  Tl  Tl1  2  0.2200  0.0000  0.1725  1.0
  Tl  Tl2  2  0.4743  0.5000  0.4628  1.0
  Ge  Ge3  2  0.2442  0.5000  0.7540  1.0
  O  O4  4  0.1527  0.7405  0.7846  1.0
  O  O5  2  0.2405  0.5000  0.4602  1.0
  O  O6  2  0.4446  0.5000  0.0352  1.0
]