data_[Rb4Ge4Sb4]
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
  Sb  2.0500  1.4500  0.8300
]
_symmetry_space_group_name_H-M [Imm2]
_cell_length_a [6.5390]
_cell_length_b [6.9512]
_cell_length_c [9.6340]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [44]
_chemical_formula_structural [RbGeSb]
_chemical_formula_sum '[Rb4 Ge4 Sb4]'
_cell_volume [437.9059]
_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  2  0.0000  0.0000  0.7645  1.0
  Rb  Rb1  2  0.0000  0.5000  0.0204  1.0
  Ge  Ge2  4  0.0000  0.1889  0.3554  1.0
  Sb  Sb3  4  0.2206  0.0000  0.1503  1.0
]