data_[Rb4Zn8Sn12]
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
  Sn  1.9600  1.4500  0.8300
]
_symmetry_space_group_name_H-M [Cmcm]
_cell_length_a [8.5992]
_cell_length_b [11.1047]
_cell_length_c [7.5993]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [RbZn2Sn3]
_chemical_formula_sum '[Rb4 Zn8 Sn12]'
_cell_volume [725.6755]
_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  4  0.0000  0.3054  0.7500  1.0
  Zn  Zn1  8  0.1563  0.0000  0.0000  1.0
  Sn  Sn2  8  0.1647  0.3911  0.2500  1.0
  Sn  Sn3  4  0.0000  0.1454  0.2500  1.0
]