data_[Rb4Na6Sn4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Na  0.9300  1.8000  1.1600
  Sn  1.9600  1.4500  0.8300
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [13.7732]
_cell_length_b [5.5873]
_cell_length_c [8.6996]
_cell_angle_alpha [90.0000]
_cell_angle_beta [121.2978]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Rb2Na3Sn2]
_chemical_formula_sum '[Rb4 Na6 Sn4]'
_cell_volume [572.0478]
_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  0.1598  0.0000  0.7782  1.0
  Na  Na1  4  0.1515  0.5000  0.4388  1.0
  Na  Na2  2  0.0000  0.5000  0.0000  1.0
  Sn  Sn3  4  0.1040  0.0000  0.1881  1.0
]