data_[Rb6Ge3Pb3F18]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Ge  2.0100  1.2500  0.7700
  Pb  2.3300  1.8000  1.1225
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [R3]
_cell_length_a [6.9186]
_cell_length_b [6.9186]
_cell_length_c [15.3901]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [146]
_chemical_formula_structural [Rb2GePbF6]
_chemical_formula_sum '[Rb6 Ge3 Pb3 F18]'
_cell_volume [637.9900]
_cell_formula_units_Z [3]
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  3  0.0000  0.0000  0.2449  1.0
  Rb  Rb1  3  0.0000  0.0000  0.7438  1.0
  Ge  Ge2  3  0.0000  0.0000  0.0053  1.0
  Pb  Pb3  3  0.0000  0.0000  0.4973  1.0
  F  F4  9  0.0350  0.7662  0.5886  1.0
  F  F5  9  0.0457  0.2499  0.0800  1.0
]