data_[Rb6Zn2Ge8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Zn  1.6500  1.3500  0.8800
  Ge  2.0100  1.2500  0.7700
]
_symmetry_space_group_name_H-M [Pmmn]
_cell_length_a [6.9746]
_cell_length_b [13.0988]
_cell_length_c [5.8910]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [59]
_chemical_formula_structural [Rb3ZnGe4]
_chemical_formula_sum '[Rb6 Zn2 Ge8]'
_cell_volume [538.1950]
_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  0.0000  0.2342  0.1708  1
  Rb  Rb1  2  0.0000  0.0000  0.5788  1
  Zn  Zn2  2  0.0000  0.5000  0.3120  1
  Ge  Ge3  4  0.0000  0.3837  0.6634  1
  Ge  Ge4  4  0.1934  0.5000  0.9343  1
]