data_[Rb12Sn16Ge8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Sn  1.9600  1.4500  0.8300
  Ge  2.0100  1.2500  0.7700
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [17.2649]
_cell_length_b [11.6944]
_cell_length_c [7.1390]
_cell_angle_alpha [90.0000]
_cell_angle_beta [113.2813]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [Rb3(Sn2Ge)2]
_chemical_formula_sum '[Rb12 Sn16 Ge8]'
_cell_volume [1324.0283]
_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  8  0.1060  0.1156  0.5950  1
  Rb  Rb1  4  0.0000  0.4325  0.7500  1
  Sn  Sn2  8  0.1449  0.2168  0.1376  1
  Sn  Sn3  8  0.2013  0.3889  0.5278  1
  Ge  Ge4  8  0.2178  0.3766  0.9394  1
]